... time-independent perturbation ==> 不含时微扰 time-indicating device ==> 时间指示器 time-integrated neutron flux ==> 时间积分中子通量 ...
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device time-indicating 时间指示装置
An instrument other than a watch for measuring or indicating time, especially a mechanical or electronic device having a numbered dial and moving hands or a digital display.
仪表，钟：除了时钟以外的测量或指示时间用的仪器，尤指一种有数字表盘、移动指针或数字显示的机械或电子仪器。
The fresh-keeping box not only leads the storage time indicating device to have simple structure, but also is convenient to set storage time.
该保鲜盒不 仅使贮藏时间指示装置结构简单，而且设定贮藏时间时操作方便。
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