1·Some products can have "traces" of thiomersal when the chemical is used during the production process as an antibacterial agent, which is later removed during the purification process.
如果在生产过程中使用硫柳汞作为抗菌剂，然后在净化过程中清除该化学品，有些制品就可有微量硫柳汞。
2·This usefulness can perhaps be attributed to the idea that an enzyme that bees add to the nectar produces hydrogen peroxide, an antibacterial agent.
这种有效性大概可能引起人们产生了这样一个想法，即蜜蜂向花蜜中添加的酶产生了过氧化氢（一种抗菌剂）。
3·Imipenem was the most effective antibacterial agent for the treatment of Enterobacteriaceae infection.
亚胺培南是治疗肠杆菌科细菌感染的有效抗菌剂。