Self-winding watches usually have a power reserve of at least 40 hours and therefore have sufficient energy reserves to maintain a stable rate when the watch is not being worn (e. g. overnight).
通常情况下，自动上链手表储存的动力至少可使用40个小时，因此即使不佩戴手表（如夜晚），也可稳定保持足够的动力。
Cardiac reserve and heart pumping function can be easily and safely measured by system e.
系统可安全、简便地测定心储备力及心脏的泵血功能。
Tanaka:What E is meant by the term Federal Reserve System ?Is that the central bank of the United States?
田翞中：什么是美国联邦储蓄系统?它是美国的中央银行吗?。
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