1. The neutralisation as necessary of the spent cleaning agent. 对使用过的冲洗剂进行必要的中和；
2. effective neutralisation of acid shall be done at the acid washing facilities prior to discharge; 排放前须在酸洗设施进行有效的酸中和；
3. The Virus Neutralisation Test (VNT) is considered the definitive test to determine whether an animal has had the virus in its system. 病毒中性试验检测（VNT）被认为是确定动物体内是否有该病毒的权威测试。
英英解释
n.
1. a chemical reaction in which an acid and a base interact with the formation of a salt; with strong a
2. (euphemism) the removal of a threat by killing or destroying it (especially in a covert operation or
3. action intended to keep a country politically neutral or exclude it from a possible war
4. action intended to nullify the effects of some previous action
