The transition from optical pumping to electrical pumping is of great significance for a organic semiconductor lasers.
有机半导体激光器实现了从光泵浦到电泵浦。
The lifetime of the electrical submersible pumping unit is the main factor affecting the overhaul period of electrical pumping unit.
对电泵井故障模式的调查和统计表明，潜油电泵机组使用寿命是影响电泵井检修周期的主要因素。
Both water and blood require a lot of pumping. Those pumps are heavy and need electrical power.
水和血液都需要大量加以泵压；这些泵既笨重又需电能。
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