每个中继器都配备了一主电源的1.9米电缆供电单元。
Every repeater unit is supplied with a mains power supply unit with a 1.9 metre cable.
确保岛上有基本的服务设施。岛上一般都靠发动机或海底电缆供电。
Check it's set up with basic services. Islands usually rely on generators or submarine cables for power.
测量数据存储在井下仪器内部，可在地面进行回放读取，且无需电缆供电传播波形的质量很高，可用于高级后处理。
Memory data stored in the tool can be accessed on surface without requiring power through the wireline cable, and delivers the highest quality waveforms for use in advanced post-processing.
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