许多革兰氏阴性细菌借助于细菌的分泌系统，分泌出毒性因子和效应子，与寄主进行分子交流。

Many germs secreted toxicity factors and effective factors by secretion systems to communicate with host cells.

youdao

本文主要介绍了铅对各个系统如神经系统、心血管系统、泌尿系统、生殖系统以及个体发育的毒性效应。

This thesis overview the systemic toxic effects of lead, including the toxic effects on nervous system, cardiovascular system, urinary system, reproductive system and the development.

youdao

本文主要介绍了铅对各个系统如神经系统、心血管系统、泌尿系统、生殖系统以及个体发育的毒性效应。

This thesis overview the systemic toxic effects of lead, including the toxic effects on nervous system, cardiovascular system, urinary system, reproductive system and the development.

youdao