actuation time meaning in English

促动时间
继电器动作时间
启动时间

Test study on two biocides , namely quaternary ammonium salt and isothiazolinelcetone , commonly used in circulatory cooling water system has been carried out , obtaining the relationship among dosage , actuation time duration , and the killed persontage , and putting forward the principle and points needing attention for selecting the biocide
摘要对火电厂循环冷却水系统常用的两种杀菌剂季胺盐及异噻唑啉酮进行了试验研究，得出加药量、作用时间与杀菌率的关系，并提出杀菌剂的选择原则和注意事项。