modification of instrument power supply 仪器电源改造
power supply of instrument 仪用电源
The power supply on this instrument had failed, so it could no longer be used.
这个仪器的电源出故障了，不能再用了。
I realized that the handrail would not come off, which meant we could no longer be able to replace the power supply and repair that instrument, which meant scientists could no longer look at the universe and find life on other planets.
我意识到，扶手不会脱落，这意味着我们再也无法更换电源供应和维修仪器，这意味着科学家们再也无法观察宇宙，在其他星球上寻找生命。
Knowing the power supply and charger test process and be familiar with test instrument.
了解电源和充电器的测试过程，会使用相关测试设备。
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