动作常数
constant───adj.不变的；恒定的；经常的；n.(Constant)人名；(德)康斯坦特；n.[数]常数；恒量
calorimeter constant───量热计常数
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）
attenuation constant───[物]衰减常量；减幅常数；衰减[减幅]常数
constant repetition───不断重复
hardening constant───硬化常数
constant pain───持续的疼痛
hubble constant───哈勃常数
time constant───[物]时间常数，时间常量
Your body has a constant demand for energy and USES the calories from food to keep functioning. Energy from calories fuels your every action, from fidgeting to marathon running.───身体不断的需求能量，并从食物中获取卡路里以维持身体各项机能，让你能行走坐卧，甚至参加马拉松长跑。
So, the study of characteristics of port plate pairs has great guiding significance and practical significance to the development and design of multi-action constant axial piston pump.───因此开展配流副特性研究，对开发设计这种多作用恒流轴向柱塞泵具有十分重要的指导意义和现实意义。
All clocks must have a regular, constant or repetitive process or action to mark off equal increments of time.───所有时钟都必须有一个均匀、恒定或重复的划分时间等量增加的过程或动作。
Issues of using double action constant-contact roller side bearings on freight car bogies and suggestions───双作用常接触滚子旁承在货车转向架运用中存在的问题及建议