速英语 / “二氨基”造句

“二氨基”造句

2024年05月03日 11:53:43
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.
A series of 2, 4 - diamino - 6 - substituted piperazine quinazolines was synthesized.

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.
Our company mainly engaged in all kinds of Sulfur Dyes Sulfur Dyes, 2.4 - diaminotoluene and so on.

以3,3′-二氨基联苯胺为显色剂, 研究了分光光度法测定有机物中的微量元素硒.
Using 3,3� � - diaminobenzidine ( DAB ) as selenium organic reagent, the author studied the determination of selenium by spectrophotometry.

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