例句
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Our company mainly engaged in all kinds of Sulfur Dyes Sulfur Dyes, 2.4 - diaminotoluene and so on.
本公司主要经营各种硫化染料,硫化染料, 2.4-二氨基甲苯等等.
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A series of Copolyimides, derived from hexamethylene diamine ( HMD ) , 4,4� � - diaminodiphenyl ether ( ODA ) and 3,3� �, 4,4� � - oxydiphthalic dianhydride ( ODPA ), were prepared.
采用二苯醚3,3, ′4, 4′-四 甲酸 二酐与己二胺和4, 4′-二氨基二苯醚为 单体 合成聚酰胺酸, 经热酰亚胺化制备共聚型聚酰亚胺.
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A series of 2, 4 - diamino - 6 - substituted piperazine quinazolines was synthesized.
本文报道2, 4-二氨基 -6- 取代哌哗嗪基喹唑啉衍生物的合成及其抗疟活性.