英语语法分析

In the experiment, di-isocyanate, polyether diol and a hydrophilic chain-extender were used to synthesize aqueous urethane.

实验采用二异氰酸酯与聚醚二元醇、亲水扩链剂反应合成水性聚氨酯。

Toxic matagenic and carcinogenic PAH diol epoxides can be derived from PAHS, which are responsible for most cases of lung cancer.

有毒的matagenic和致癌物质PAH二醇环氧化合物均来源于多环芳香烃(PAH)，它是导致大多数肺癌的罪魁祸首。

Juvenile hormone (JH) metabolism enzymes, including JH esterase, JH epoxide hydrolase and JH diol kinase, catalyze JH to metabolize.

保幼激素的代谢由保幼激素酯酶、保幼激素环氧水解酶和保幼激素二醇激酶等共同催化完成。