Electromagnetic micromotor is an ideal micro actuator for MEMS, micro robot and micro movable elements, because of it's large output torque, long lifetime and easy in practical applications.

电磁型微马达以其输出力矩大、运行寿命长、易于实用化的优点成为微机电系统、微型机器人和微型可动部件理想的驱动器。

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"The lifetime of the universe isn't long enough for that," Dr. Koch said. "There are immense practical problems with the theory, but that was also true for the theory of general relativity early on."

“宇宙的生命时期还不够长，”科赫博士说，“理论还有极大的实际问题，但是广义相对论诞生的早期也有类似的问题。”

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The delay time ought to be smaller than the lifetime of the excited molecule in the practical use of the OODR-MPI technique.

探测光相对于抽运光的延迟时间越大，离化效率越低，实用中应控制延迟时间远小于受激分子的自发辐射寿命。

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On the other hand, distilling a lifetime into a series of practical lessons has clearly pushed Mr Broad to do some hard thinking and self-analysis, which makes his book a useful read, especially for anyone engaging in entrepreneurship or philanthropy.

ECONOMIST: Uncommonly unreasonable