Purposes: (1) Research on the impact of MXC toxicosis to mice embryo nidation.

目的：(1)研究MXC染毒对小鼠胚胎着床的影响。

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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。

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Analyses the malfunction of the selective crusher of Model MXC 3350, and improves the construction of the machine to fit local situation, and gets good profits.

针对MXC 335 0型选择性破碎机运行故障及原因进行了分析，并根据现场实践进行了改造，收到了良好的效果。

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