英语语法分析

Objective: To observe the effect of methoxychlor (MXC) on the invasiveness of extravillous trophoblast in vitro.

目的：探讨甲氧滴滴涕（MXC）对绒毛外滋养细胞侵袭能力的影响。

Methoxychlor is a DDT substitute and one of endocrine-disrupting chemicals which heavily pollutes the environment.

甲氧滴滴涕是滴滴涕的结构类似物和替代物，是农药内分泌干扰物的一种。

Methoxychlor consignment four major production companies, acetate cobalt, manganese acetate series of intermediate products.

公司主要生产四氯苯醌、醋酸钴、醋酸锰等中间体系列产品。