1·The main preventative agent is simply water.
主要的防护剂就是水。
2·We use bispyribac-sodium (BS) as a selection agent.
我们以双草醚钠作为筛选剂。
3·The invention also discloses the application of the antisludging agent.
本发明还公开了防沉剂的应用。
4·Synthesize polytrimethylene terephthalate with higher characteristic viscosity and nucleating agent.
采用具有较高特性黏度、含成核剂的聚对苯二甲酸丙二醇酯（PTT）。
5·Sat-RNA of CMV is a subviral agent, which depends on its helper virus to replicate and cell to cell diffuse.
CMV 的 Sat-RNA 是一种亚病毒剂，取决于其辅助病毒的复制和细胞间的扩散。