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。
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.
本文着重探讨汽车电源系统的常见故障分析、诊断以及维修作业的主要内容。
This article focuses on the automotive power systems common failure analysis, diagnosis and the main content of the maintenance jobs.
检查或维修时，请一定要切断所有输入电源。
Inspection or maintenance, be sure to cut off all input power.
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