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- A film of mucus and bacteria on a tooth surface. 齿菌斑牙齿表面一层粘液和细菌的膜
- Denitrification The chemical reduction of nitrate by soil bacteria. 反硝化作用，脱氮作用：通过土壤细菌还原硝酸盐的化学反应。
- Bacteria are too small to see with the naked eye. 细菌太小，肉眼看不见。
- Many diseases are caused by bacteria. 许多疾病是由细菌引起的。
- Dissolution or destruction of bacteria. 溶菌作用对细菌的溶解或破坏
- Such a growth or colony, as of bacteria. 培养菌该种生长物或群落，如培养菌
- The presence of bacteria in the blood. 菌血症血液中细菌的存在
- nitrate bacteria 硝化细菌
- Nitrate of soda may be sown on pasture that does not eat off. 可以把硝酸钠撒在牧草还没有吃光的草地上。
- He worked out methods to destroy bacteria on the seeds. 他研究出消灭种子上细菌的方法。
- A bacterium is identified as the cause for his duodenal ulcer. 一种细菌被断定为造成他十二指肠溃疡的根源。
- Professor Fang worked out a method to destroy bacteria on the seeds. 方教授想出了一个办法来消灭种子上的细菌。
- A highly explosive mixture of ammonium nitrate and trinitrotoluene. 阿马托炸药一种由硝酸铵和三硝基甲苯组成的烈性混合炸药
- A cellulose nitrate used as a component of smokeless powder. 火纤维素硝酸纤维素，用于无烟的炸药的组成物质
- For differentiating bacteria based on motility and nitrate reduction test. 用于鉴别细菌动力和硝酸盐还原试验。
- Observe carefully how the bacteria respond to this stimulus. 仔细观察细菌对这一刺激有什么反应。
- Nitrate reductase is a short-lived enzyme. 硝酸还原酶是短寿酶。
- Hot weather multiplied the bacteria in the food rapidly. 炎热的天气使食品中的细菌迅速繁殖。
- They were able to nitrate methane to nitromethane. 他们能将甲烷硝化成硝基甲烷。
- A similar mass of fibers formed by certain bacteria. 由某种细菌形成的类似的一束纤维
