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[http://www.shop263.com/i-1/1511.htm 二茂铁]
[http://www.shop263.com/i-1/1512.htm 二萘酚]
[http://www.shop263.com/i-1/1513.htm 二羟基苯甲酸]
[http://www.shop263.com/i-1/1514.htm 二羟基苯腈]
[http://www.shop263.com/i-1/1515.htm 二羟甲基丙酸]
[http://www.shop263.com/i-1/1516.htm 二羟甲基海因]
[http://www.shop263.com/i-1/1517.htm 二氢芳樟醇]
[http://www.shop263.com/i-1/1518.htm 二氢黄樟素]
[http://www.shop263.com/i-1/1519.htm 二氢月桂烯]
[http://www.shop263.com/i-1/1520.htm 二氢月桂烯醇]
[http://www.shop263.com/i-1/1521.htm 二巯基丙磺酸钠]
[http://www.shop263.com/i-1/1522.htm 二壬基萘磺酸钡]
[http://www.shop263.com/i-1/1523.htm 二壬基萘磺酸钡盐]
[http://www.shop263.com/i-1/1524.htm 二叔丁基过氧化]
[http://www.shop263.com/i-1/1525.htm 二叔丁基过氧化氢]
[http://www.shop263.com/i-1/1526.htm 二特丁基对苯二酚]
[http://www.shop263.com/i-1/1527.htm 二烯丙基胺]
[http://www.shop263.com/i-1/1528.htm 二硝基甲苯]
[http://www.shop263.com/i-1/1529.htm 二辛酯]
[http://www.shop263.com/i-1/1530.htm 二溴丁烷]
[http://www.shop263.com/i-1/1531.htm 二溴海因]
[http://www.shop263.com/i-1/1532.htm 二溴基氰乙酰胺]
[http://www.shop263.com/i-1/1533.htm 二盐基亚磷酸]
[http://www.shop263.com/i-1/1534.htm 二盐基亚磷酸铅]
[http://www.shop263.com/i-1/1535.htm 二氧丙烷]
[http://www.shop263.com/i-1/1536.htm 二氧化锆]
[http://www.shop263.com/i-1/1537.htm 二氧化硫脲]
[http://www.shop263.com/i-1/1538.htm 二氧化碳]
[http://www.shop263.com/i-1/1539.htm 二氧六环]
[http://www.shop263.com/i-1/1540.htm 二氧七环]
[http://www.shop263.com/i-1/1541.htm 二氧五环]
[http://www.shop263.com/i-1/1542.htm 二乙二醇二醋酸酯]
[http://www.shop263.com/i-1/1543.htm 二乙基氨基甲基丙烯酸乙酯]
[http://www.shop263.com/i-1/1544.htm 二乙基苯胺]
[http://www.shop263.com/i-1/1545.htm 二乙基二硫]
[http://www.shop263.com/i-1/1546.htm 二乙基羟胺]
[http://www.shop263.com/i-1/1547.htm 二乙醚]
[http://www.shop263.com/i-1/1548.htm 二乙烯三胺]
[http://www.shop263.com/i-1/1549.htm 二异丙醇胺]
[http://www.shop263.com/i-1/1550.htm 二异丙基苯胺]
[http://www.shop263.com/i-1/1551.htm 二异丙基酚]
[http://www.shop263.com/i-1/1552.htm 二异丁基酮]
[http://www.shop263.com/i-1/1553.htm 二异丁酯]
[http://www.shop263.com/i-1/1554.htm 二元醇醚类]
[http://www.shop263.com/i-1/1555.htm 二月桂酸]
[http://www.shop263.com/i-1/1556.htm 发光粉]
[http://www.shop263.com/i-1/1557.htm 发泡剂]
[http://www.shop263.com/i-1/1558.htm 发泡阻燃材料]
[http://www.shop263.com/i-1/1559.htm 发烟硫酸]
[http://www.shop263.com/i-1/1560.htm 钒锆黄]
[http://www.shop263.com/i-1/1561.htm 反丁烯二酸]
[http://www.shop263.com/i-1/1562.htm 反式对甲基环己甲]
[http://www.shop263.com/i-1/1563.htm 泛醇]
[http://www.shop263.com/i-1/1564.htm 泛解酸内酯]
[http://www.shop263.com/i-1/1565.htm 泛酸钙]
[http://www.shop263.com/i-1/1566.htm 芳基硅烷]
[http://www.shop263.com/i-1/1567.htm 芳烃溶剂油]
[http://www.shop263.com/i-1/1568.htm 芳香酸甲酯]
[http://www.shop263.com/i-1/1569.htm 芳樟醇]
[http://www.shop263.com/i-1/1570.htm 防白水]
[http://www.shop263.com/i-1/1571.htm 防腐油漆]
[http://www.shop263.com/i-1/1572.htm 防火堵料]
[http://www.shop263.com/i-1/1573.htm 防火涂料]
[http://www.shop263.com/i-1/1574.htm 防老剂]
[http://www.shop263.com/i-1/1575.htm 防霉剂]
[http://www.shop263.com/i-1/1576.htm 防水粘合材料]
[http://www.shop263.com/i-1/1577.htm 防锈蜡]
[http://www.shop263.com/i-1/1578.htm 仿陶瓷的花盆]
[http://www.shop263.com/i-1/1579.htm 纺丝油剂]
[http://www.shop263.com/i-1/1580.htm 纺织蜡]
[http://www.shop263.com/i-1/1581.htm 纺织印染助剂]
[http://www.shop263.com/i-1/1582.htm 纺织用油]
[http://www.shop263.com/i-1/1583.htm 非离子表面活性剂]
[http://www.shop263.com/i-1/1584.htm 非洛地平]
[http://www.shop263.com/i-1/1585.htm 非诺贝特]
[http://www.shop263.com/i-1/1586.htm 非诺贝特酸]
[http://www.shop263.com/i-1/1587.htm 菲醌]
[http://www.shop263.com/i-1/1588.htm 废硫酸]
[http://www.shop263.com/i-1/1589.htm 酚醛树脂]
[http://www.shop263.com/i-1/1590.htm 阳极电泳漆]
[http://www.shop263.com/i-1/1591.htm 封口蜡]
[http://www.shop263.com/i-1/1592.htm 蜂胶]
[http://www.shop263.com/i-1/1593.htm 蜂蜡]
[http://www.shop263.com/i-1/1594.htm 蜂王浆]
[http://www.shop263.com/i-1/1595.htm 呋喃]
[http://www.shop263.com/i-1/1596.htm 呋喃甲醇]
[http://www.shop263.com/i-1/1597.htm 呋喃甲醛]
[http://www.shop263.com/i-1/1598.htm 呋喃树脂]
[http://www.shop263.com/i-1/1599.htm 水合肼]
[http://www.shop263.com/i-1/1600.htm 水肌酸]
[http://www.shop263.com/i-1/1601.htm 水基清防蜡剂]
[http://www.shop263.com/i-1/1602.htm 水解聚丙烯腈]
[http://www.shop263.com/i-1/1603.htm 水晶]
[http://www.shop263.com/i-1/1604.htm 水晶蜡]
[http://www.shop263.com/i-1/1605.htm 水泥]
[http://www.shop263.com/i-1/1606.htm 水泥分散剂]
[http://www.shop263.com/i-1/1607.htm 水泥缓凝剂]
[http://www.shop263.com/i-1/1608.htm 水溶性氮酮]
[http://www.shop263.com/i-1/1609.htm 氧基硅烷]
[http://www.shop263.com/i-1/1610.htm 水溶性硅油]
[http://www.shop263.com/i-1/1611.htm 水乳剂]
[http://www.shop263.com/i-1/1612.htm 水性木]
[http://www.shop263.com/i-1/1613.htm 水性上光油]
[http://www.shop263.com/i-1/1614.htm 水性亚光型光油]
[http://www.shop263.com/i-1/1615.htm 水杨酸]
[http://www.shop263.com/i-1/1616.htm 水杨酸苯酯]
[http://www.shop263.com/i-1/1617.htm 水杨酸甲酯]
[http://www.shop263.com/i-1/1618.htm 水杨酸辛酯]
[http://www.shop263.com/i-1/1619.htm 水杨酰胺]
[http://www.shop263.com/i-1/1620.htm 顺丁胶]
[http://www.shop263.com/i-1/1621.htm 顺丁烯二酸酐]
[http://www.shop263.com/i-1/1622.htm 氟苯]
[http://www.shop263.com/i-1/1623.htm 氟苯基]
[http://www.shop263.com/i-1/1624.htm 氟代苯]
[http://www.shop263.com/i-1/1625.htm 氟代二苯甲酮]
[http://www.shop263.com/i-1/1626.htm 氟代烷基硅烷]
[http://www.shop263.com/i-1/1627.htm 氟锆酸钾]
[http://www.shop263.com/i-1/1628.htm 氟硅酸钠]
[http://www.shop263.com/i-1/1629.htm 氟化铵]
[http://www.shop263.com/i-1/1630.htm 氟化钙]
[http://www.shop263.com/i-1/1631.htm 氟化钾]
[http://www.shop263.com/i-1/1632.htm 氟化铝]
[http://www.shop263.com/i-1/1633.htm 氟化钠]
[http://www.shop263.com/i-1/1634.htm 氟化氢铵]
[http://www.shop263.com/i-1/1635.htm 氟化氢钾]
[http://www.shop263.com/i-1/1636.htm 氟化氢纳]
[http://www.shop263.com/i-1/1637.htm 氟化锶]
[http://www.shop263.com/i-1/1638.htm 氟磺酸]
[http://www.shop263.com/i-1/1639.htm 氟甲苯]
[http://www.shop263.com/i-1/1640.htm 氟尿嘧啶]
[http://www.shop263.com/i-1/1641.htm 氟硼酸钾]
[http://www.shop263.com/i-1/1642.htm 氟硼酸钠]
[http://www.shop263.com/i-1/1643.htm 氟西汀]
[http://www.shop263.com/i-1/1644.htm 氟硝基苯]
[http://www.shop263.com/i-1/1645.htm 氟乙酸甲酯]
[http://www.shop263.com/i-1/1646.htm 氟致冷剂]
[http://www.shop263.com/i-1/1647.htm 复合高效抗磨减摩剂]
[http://www.shop263.com/i-1/1648.htm 复合胶]
[http://www.shop263.com/i-1/1649.htm 复合聚酯膜]
[http://www.shop263.com/i-1/1650.htm 复合铅盐稳定剂]
[http://www.shop263.com/i-1/1651.htm 复混肥]
[http://www.shop263.com/i-1/1652.htm 复配型果蔬保鲜剂]
[http://www.shop263.com/i-1/1653.htm 富镧氯化稀土]
[http://www.shop263.com/i-1/1654.htm 富马酸]
[http://www.shop263.com/i-1/1655.htm 改性防沉剂]
[http://www.shop263.com/i-1/1656.htm 改性三聚]
[http://www.shop263.com/i-1/1657.htm 改质沥青]
[http://www.shop263.com/i-1/1658.htm 钙基膨润土]
[http://www.shop263.com/i-1/1659.htm 干酪素]
[http://www.shop263.com/i-1/1660.htm 干湿强剂]
[http://www.shop263.com/i-1/1661.htm 甘氨酸]
[http://www.shop263.com/i-1/1662.htm 甘氨酸钠]
[http://www.shop263.com/i-1/1663.htm 甘宝素]
[http://www.shop263.com/i-1/1664.htm 甘露醇]
[http://www.shop263.com/i-1/1665.htm 甘油]
[http://www.shop263.com/i-1/1666.htm 感光化学品]
[http://www.shop263.com/i-1/1667.htm 钢蜡]
[http://www.shop263.com/i-1/1668.htm 高补强白碳黑]
[http://www.shop263.com/i-1/1669.htm 高纯氨水]
[http://www.shop263.com/i-1/1670.htm 高纯硅酸钠溶液]
[http://www.shop263.com/i-1/1671.htm 高纯氢]
[http://www.shop263.com/i-1/1672.htm 高纯碳酸锶]
[http://www.shop263.com/i-1/1673.htm 高纯稀土]
[http://www.shop263.com/i-1/1674.htm 高沸点芳烃溶剂]
[http://www.shop263.com/i-1/1675.htm 高分子复合粘合剂]
[http://www.shop263.com/i-1/1676.htm 高光滑爽型水性光油]
[http://www.shop263.com/i-1/1677.htm 高光亮水性光油]
[http://www.shop263.com/i-1/1678.htm 高回弹泡沫]
[http://www.shop263.com/i-1/1679.htm 高氯化聚乙烯]
[http://www.shop263.com/i-1/1680.htm 高氯酸锂]
[http://www.shop263.com/i-1/1681.htm 高锰酸钾]
[http://www.shop263.com/i-1/1682.htm 高水溶性硫酸钾]
[http://www.shop263.com/i-1/1683.htm 高温导热油]
[http://www.shop263.com/i-1/1684.htm 高效活性聚合物驱油剂]
[http://www.shop263.com/i-1/1685.htm 高效节油剂]
[http://www.shop263.com/i-1/1686.htm 高效渗透促进剂]
[http://www.shop263.com/i-1/1687.htm 高效脱模剂]
[http://www.shop263.com/i-1/1688.htm 高沼气煤矿水胶炸药]
[http://www.shop263.com/i-1/1689.htm 锆氟酸铵]
[http://www.shop263.com/i-1/1690.htm 锆氟酸钾]
[http://www.shop263.com/i-1/1691.htm 锆刚玉]
[http://www.shop263.com/i-1/1692.htm 锆英粉]
[http://www.shop263.com/i-1/1693.htm 隔膜烧碱]
[http://www.shop263.com/i-1/1694.htm 铬矿]
[http://www.shop263.com/i-1/1695.htm 铬酸酐]
[http://www.shop263.com/i-1/1696.htm 铬酸锶]
[http://www.shop263.com/i-1/1697.htm 庚醇]
[http://www.shop263.com/i-1/1698.htm 庚醛]
[http://www.shop263.com/i-1/1699.htm 庚酸]
[http://www.shop263.com/i-1/1700.htm 庚酰氯]
[http://www.shop263.com/i-1/1701.htm 工程塑料]
[http://www.shop263.com/i-1/1702.htm 工程塑料母料]
[http://www.shop263.com/i-1/1703.htm 工业氨水]
[http://www.shop263.com/i-1/1704.htm 工业白油]
[http://www.shop263.com/i-1/1705.htm 工业冰醋酸]
[http://www.shop263.com/i-1/1706.htm 工业冰乙酸]
[http://www.shop263.com/i-1/1707.htm 工业硅酸铅]
[http://www.shop263.com/i-1/1708.htm 工业级戊二酸]
[http://www.shop263.com/i-1/1709.htm 工业甲基萘]
[http://www.shop263.com/i-1/1700.htm 工业磷酸]
[http://www.shop263.com/i-1/1711.htm 工业氯化铵]
[http://www.shop263.com/i-1/1712.htm 工业氯化钾]
[http://www.shop263.com/i-1/1713.htm 工业氯乙酸]
[http://www.shop263.com/i-1/1714.htm 工业清洗剂]
[http://www.shop263.com/i-1/1715.htm 工业水杨酸]
[http://www.shop263.com/i-1/1716.htm 工业涂料]
[http://www.shop263.com/i-1/1717.htm 工业硝酸钾]
[http://www.shop263.com/i-1/1718.htm 工业盐酸]
[http://www.shop263.com/i-1/1719.htm 工业乙酸酐]
[http://www.shop263.com/i-1/1720.htm 工业用甲醇]
[http://www.shop263.com/i-1/1721.htm 工业用油]
[http://www.shop263.com/i-1/1722.htm 工业用油酸]
[http://www.shop263.com/i-1/1723.htm 工艺品树脂]
[http://www.shop263.com/i-1/1724.htm 工艺品专用漆]
[http://www.shop263.com/i-1/1725.htm 功夫酸]
[http://www.shop263.com/i-1/1726.htm 功能母料]
[http://www.shop263.com/i-1/1727.htm 古马隆树脂]
[http://www.shop263.com/i-1/1728.htm 骨胶]
[http://www.shop263.com/i-1/1729.htm 固色剂]
[http://www.shop263.com/i-1/1730.htm 固体光气]
[http://www.shop263.com/i-1/1731.htm 固体磺化沥青]
[http://www.shop263.com/i-1/1732.htm 固体硫磺]
[http://www.shop263.com/i-1/1733.htm 固体乙醇]
[http://www.shop263.com/i-1/1734.htm 光引发剂]
[http://www.shop263.com/i-1/1735.htm 光致变色材料]
[http://www.shop263.com/i-1/1736.htm 胱氨酸]
[http://www.shop263.com/i-1/1737.htm 硅灰石]
[http://www.shop263.com/i-1/1738.htm 硅胶]
[http://www.shop263.com/i-1/1739.htm 硅凝胶]
[http://www.shop263.com/i-1/1740.htm 硅树脂]
[http://www.shop263.com/i-1/1741.htm 硅酸锆]
[http://www.shop263.com/i-1/1742.htm 硅酸钾溶液]
[http://www.shop263.com/i-1/1743.htm 硅酸乙酯]
[http://www.shop263.com/i-1/1744.htm 硅烷偶联剂]
[http://www.shop263.com/i-1/1745.htm 硅微粉]
[http://www.shop263.com/i-1/1746.htm 硅橡胶]
[http://www.shop263.com/i-1/1747.htm 癸二酸]
[http://www.shop263.com/i-1/1748.htm 癸烷油]
[http://www.shop263.com/i-1/1749.htm 国标异丙醇]
[http://www.shop263.com/i-1/1750.htm 果冻蜡]
[http://www.shop263.com/i-1/1751.htm 过磷酸钙]
[http://www.shop263.com/i-1/1752.htm 过硫酸]
[http://www.shop263.com/i-1/1753.htm 过氧化苯甲酸叔丁酯]
[http://www.shop263.com/i-1/1754.htm 过氧化二苯甲酰]
[http://www.shop263.com/i-1/1755.htm 过氧化二叔丁基]
[http://www.shop263.com/i-1/1756.htm 过氧化甲乙酮]
[http://www.shop263.com/i-1/1757.htm 过氧化氢]
[http://www.shop263.com/i-1/1758.htm 过氧化锶]
[http://www.shop263.com/i-1/1759.htm 过氧乙酸]
[http://www.shop263.com/i-1/1760.htm 海藻酸钠]
[http://www.shop263.com/i-1/1761.htm 焊接净]
[http://www.shop263.com/i-1/1762.htm 焊咀防堵剂]
[http://www.shop263.com/i-1/1763.htm 航空煤油]
[http://www.shop263.com/i-1/1764.htm 合成氨]
[http://www.shop263.com/i-1/1765.htm 合成树脂]
[http://www.shop263.com/i-1/1766.htm 合成纤维]
[http://www.shop263.com/i-1/1767.htm 合成纤维单体]
[http://www.shop263.com/i-1/1768.htm 合成橡胶]
[http://www.shop263.com/i-1/1769.htm 合成载热体]
[http://www.shop263.com/i-1/1770.htm 合成樟脑粉]
[http://www.shop263.com/i-1/1771.htm 褐藻多糖]
[http://www.shop263.com/i-1/1772.htm 褐藻酸钠]
[http://www.shop263.com/i-1/1773.htm 黑白彩色母料]
[http://www.shop263.com/i-1/1774.htm 红丹]
[http://www.shop263.com/i-1/1775.htm 红矾钾]
[http://www.shop263.com/i-1/1776.htm 红矾钠]
[http://www.shop263.com/i-1/1777.htm 红铅丹]
[http://www.shop263.com/i-1/1778.htm 琥珀酸]
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Revision as of 20:50, 24 October 2004

Motivation

All the Xiph.org codecs have some internal mechanism for including metadata about the current stream. Generally, this is one of the codec headers, and in the words of the vorbis spec, "It is meant for short, text comments...much like someone jotting a quick note on the bottom of a CDR."

This works well enough for most things, and can be overloaded/abused (depending on your point of view) for most other things. But there are three major requirements that point to the design of an external metadata format; one that can be interleaved with the other streams in a container.

  • Machinability There are a number of items of metadata that a player will want to parse and take action on. While there are usually 'convention' schemes for doing this with the embedded comment headers, this is much easier if there is a separate metadata stream designed for such use, instead of having to do best-effort parsing of natural language comments. For example, a video file with multiple audio tracks can specify the language of each one; a player than can parse these reliably can match them against a language preference list configured by the user to automatically select and begin playback of the best option.
  • Kitchen Sink There are a minority of people who care passionately about having every detail about a track available. In the sense of conserving such information, and providing an equivalent to liner notes for online distribution, this is a goal worth supporting. However, the simple unstructured key-value pairs offered by the inline metadata are unwieldy for this level of detail. How do you tell the 2nd unit Assistant Director from the USA unit Assistant Director? How do you indicate which artist played tenor sax in the solo?
  • Addressability The internal comment metadata headers are by necessity attached to a single content stream. This is useful for some appication, but a limitation in others. In a multiplexed stream, which set of comments refers to the collection as a whole? (By convention, in Ogg, it's the first logical bitstream occuring, but we can do better.) A separate metadata stream type must address this issue of collective metadata while still allowing description of individual streams. It should also allow temporal addressability, so that changes can be described. Because the in-stream comment metadata are part of the codec headers, it cannot change over the course of the stream, and allowing additional comment packets elsewhere in the stream presents seeking challenges. In the Ogg container this can be resolved by inserting a chain boundary, but this is a poor option for very-low-bitrate streams and unreliable transports such as RTP.

Proposed Solutions

RDF + dublin core

XML-encoding (generic rdf or CMML?) binary encoding (three-component length-encoded binary vectors) 二茂铁 二萘酚 二羟基苯甲酸 二羟基苯腈 二羟甲基丙酸 二羟甲基海因 二氢芳樟醇 二氢黄樟素 二氢月桂烯 二氢月桂烯醇 二巯基丙磺酸钠 二壬基萘磺酸钡 二壬基萘磺酸钡盐 二叔丁基过氧化 二叔丁基过氧化氢 二特丁基对苯二酚 二烯丙基胺 二硝基甲苯 二辛酯 二溴丁烷 二溴海因 二溴基氰乙酰胺 二盐基亚磷酸 二盐基亚磷酸铅 二氧丙烷 二氧化锆 二氧化硫脲 二氧化碳 二氧六环 二氧七环 二氧五环 二乙二醇二醋酸酯 二乙基氨基甲基丙烯酸乙酯 二乙基苯胺 二乙基二硫 二乙基羟胺 二乙醚 二乙烯三胺 二异丙醇胺 二异丙基苯胺 二异丙基酚 二异丁基酮 二异丁酯 二元醇醚类 二月桂酸 发光粉 发泡剂 发泡阻燃材料 发烟硫酸 钒锆黄 反丁烯二酸 反式对甲基环己甲 泛醇 泛解酸内酯 泛酸钙 芳基硅烷 芳烃溶剂油 芳香酸甲酯 芳樟醇 防白水 防腐油漆 防火堵料 防火涂料 防老剂 防霉剂 防水粘合材料 防锈蜡 仿陶瓷的花盆 纺丝油剂 纺织蜡 纺织印染助剂 纺织用油 非离子表面活性剂 非洛地平 非诺贝特 非诺贝特酸 菲醌 废硫酸 酚醛树脂 阳极电泳漆 封口蜡 蜂胶 蜂蜡 蜂王浆 呋喃 呋喃甲醇 呋喃甲醛 呋喃树脂 水合肼 水肌酸 水基清防蜡剂 水解聚丙烯腈 水晶 水晶蜡 水泥 水泥分散剂 水泥缓凝剂 水溶性氮酮 氧基硅烷 水溶性硅油 水乳剂 水性木 水性上光油 水性亚光型光油 水杨酸 水杨酸苯酯 水杨酸甲酯 水杨酸辛酯 水杨酰胺 顺丁胶 顺丁烯二酸酐 氟苯 氟苯基 氟代苯 氟代二苯甲酮 氟代烷基硅烷 氟锆酸钾 氟硅酸钠 氟化铵 氟化钙 氟化钾 氟化铝 氟化钠 氟化氢铵 氟化氢钾 氟化氢纳 氟化锶 氟磺酸 氟甲苯 氟尿嘧啶 氟硼酸钾 氟硼酸钠 氟西汀 氟硝基苯 氟乙酸甲酯 氟致冷剂 复合高效抗磨减摩剂 复合胶 复合聚酯膜 复合铅盐稳定剂 复混肥 复配型果蔬保鲜剂 富镧氯化稀土 富马酸 改性防沉剂 改性三聚 改质沥青 钙基膨润土 干酪素 干湿强剂 甘氨酸 甘氨酸钠 甘宝素 甘露醇 甘油 感光化学品 钢蜡 高补强白碳黑 高纯氨水 高纯硅酸钠溶液 高纯氢 高纯碳酸锶 高纯稀土 高沸点芳烃溶剂 高分子复合粘合剂 高光滑爽型水性光油 高光亮水性光油 高回弹泡沫 高氯化聚乙烯 高氯酸锂 高锰酸钾 高水溶性硫酸钾 高温导热油 高效活性聚合物驱油剂 高效节油剂 高效渗透促进剂 高效脱模剂 高沼气煤矿水胶炸药 锆氟酸铵 锆氟酸钾 锆刚玉 锆英粉 隔膜烧碱 铬矿 铬酸酐 铬酸锶 庚醇 庚醛 庚酸 庚酰氯 工程塑料 工程塑料母料 工业氨水 工业白油 工业冰醋酸 工业冰乙酸 工业硅酸铅 工业级戊二酸 工业甲基萘 工业磷酸 工业氯化铵 工业氯化钾 工业氯乙酸 工业清洗剂 工业水杨酸 工业涂料 工业硝酸钾 工业盐酸 工业乙酸酐 工业用甲醇 工业用油 工业用油酸 工艺品树脂 工艺品专用漆 功夫酸 功能母料 古马隆树脂 骨胶 固色剂 固体光气 固体磺化沥青 固体硫磺 固体乙醇 光引发剂 光致变色材料 胱氨酸 硅灰石 硅胶 硅凝胶 硅树脂 硅酸锆 硅酸钾溶液 硅酸乙酯 硅烷偶联剂 硅微粉 硅橡胶 癸二酸 癸烷油 国标异丙醇 果冻蜡 过磷酸钙 过硫酸 过氧化苯甲酸叔丁酯 过氧化二苯甲酰 过氧化二叔丁基 过氧化甲乙酮 过氧化氢 过氧化锶 过氧乙酸 海藻酸钠 焊接净 焊咀防堵剂 航空煤油 合成氨 合成树脂 合成纤维 合成纤维单体 合成橡胶 合成载热体 合成樟脑粉 褐藻多糖 褐藻酸钠 黑白彩色母料 红丹 红矾钾 红矾钠 红铅丹 琥珀酸 滑石粉 化纤桨料 化学纤维油剂 化妆品硅油 环保桶 环丙胺 环丙基氰盐酸盐 环丁砜 环合物 环几亚胺 环己甲酸 环己甲酰氯 环己酮 环己酮环 环烷酸 环戊酮 环戊烷 环戊烯 环氧丙烷 环氧大豆油 环氧环己烷 环氧类涂料 环氧氯丙烷 环氧煤沥青 环氧树脂 环氧系列阳极电泳漆 环氧乙烷 环氧脂肪酸丁酯 环氧脂肪酸辛酯 环氧酯 环已酮 环已烷 缓蚀剂 缓蚀阻垢剂 黄丹 黄蜂蜡 黄糊精 黄磷 黄铅丹 黄血盐钾 黄血盐钠 黄樟油 磺胺醋酰钠 磺胺间二甲氧嘧啶 磺胺间甲氧嘧啶 磺胺林 磺胺氯哒嗪钠 磺胺噻唑 磺胺酸 磺草酮 磺化单宁 磺化栲胶 磺化栲胶无铬稀释剂 磺基水杨酸 磺酸固化剂 磺酸钾 磺酸钠 磺酸钠盐 磺酰胺 磺酰氯 混丙醇 混醇 混二酸二甲酯 混酚 混合氯化稀土 混合液晶材料 混合酯 混甲胺 混凝剂 混旋泛醇 混旋泛酸钙 混旋泛酰内酯 活性白土 活性白土吸附脱色剂 活性氟化钾 活性磷酸钙 机车清洗剂 机磷酸酯类阻燃剂 机械油 肌氨酸 肌氨酸钠 肌苷 基苯胺 基丙酰胺 基磺酰氯 基甲苯装置 基哌啶酮 基酮 基准试剂 己二醇 己二酸二甲酯 己二酸二酰肼 己内酰胺 季戊四醇 加成酸 加氢甲基睾酮 加替沙星环合酯 夹芯板材 佳氟涂料用氟树脂 家俬漆 甲氨喋呤 甲氨基甲酰氯 甲苯胺单磺酸 甲苯胺装置 甲醇 甲醇催化剂 甲醇钾 甲醇钠 甲代烯丙基磺酸钠 甲代烯丙基氯 甲酚 甲砜霉素 甲磺酸 甲磺酸酐 甲磺酸帕苏沙星 甲磺酸铅 甲磺酸锡 甲磺酰胺 甲磺酰氯 甲基 甲基柏木醚 甲基苯胺







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