作用周期
period───n.周期，期间；时期；一段时间；经期；课时；句点，句号；adj.某一时代的
action───n.行动；活动；功能；战斗；情节；<非正式>精彩活动；n.（Action）（英）埃克申（人名）
cerium period───铈周期
trial period───受审期，试用期
pay period───发工资期；[劳经]工资结算期
averaging period───[统计]平均周期
cretaceous period───白垩纪
acclimation period───缋化周期；n.驯化周期
billing period───账单收费期；结算期
The effects of frequency, power, action period and stirring velocity of ultrasound on the size of blowing agent ADC are experimentally investigated.───考察了超声频率、功率，超声时间和搅拌速度对产品粒度的影响。
Xinjining Capsule" can fight arrhythmia by inhibiting K channel, prolonging action period and protecting ischemia.───疾宁胶囊可通过抑制钾通道，延长动作电位时程，保护缺血心肌而抗心律失常。
Acidification is a major stimulation treatment for Yumen Qingxi oilfield, but a lot of oil wells action period are shorter.───青西油田油井一般通过深度酸化措施才能获得高产稳产，但措施后许多油井有效期较短。
Bolt and Boltmesh support tech. In road driving along next goaf during bearing force action period───支承压力作用期沿空掘巷锚网支护技术
Study on System of Action Period in the Criminal Procedure───刑事程序框架下的诉讼期间制度研究
Acidification is a major stimulation treatment for Yumen Qingxi oilfield, but a lot of oil wells action period are shorter.
Applying BGA could obviously shorten the action period of FA HDL on E . japonicus.
The effects of frequency, power, action period and stirring velocity of ultrasound on the size of blowing agent ADC are experimentally investigated.
In the same concentration, ELmRNA was reduced with the prolonged action period.
Acidification treatment for Yumen Qingxi oilfield, but a lot of oil wells action period are shorter.
It is revealed that "Xinjining Capsule" can fight arrhythmia by inhibiting K channel, prolonging action period and protecting ischemia.