limited life

Certain engines with overhead camshafts have timing belts that have a limited life span.

顶制凸轮轴结构的汽车发动机都配备了正时皮带,并且这个皮带的生命周期是有限的.

Limited Life Time Mechanical Strength Design and Training Talents

机械强度有限寿命设计与培养人才

His reclusive lyrics reflect feelings of seclusion landscape ascot, prologue highlights sense of carpe diem and thinking of limited life.

他的隐逸词表现隐居林泉的雅士情怀，节序词凸显及时行乐思想和生命有限意识。

Digital Rights Management ( DRM) is a technology which can prevent digital contents from being piracy and illegal use in its limited life cycle.

数字版权管理（DRM）是保护数字内容在其有限的生命周期内不被盗版和非法使用的一种技术。