The third officer should often check the number of life-saving signals, validity and status.
三副应当经常检查救生信号的数量，有效期和状况。
Clean, crisp signals are ensured over long cable lengths, decreasing the need for signal Repeaters and saving on total installation costs.
清洁，保证清晰的信号在长距离电缆长度，减少对信号的中继器的需要，对总安装成本节省。
One crux of energy saving irrigation techniques is to investigate appropriate thirst signals of water saving irrigation control.
节水、节能灌溉技术的关键之一在于寻求合理的节水灌溉控制信号。
The kernel of this system is computer. The system has the ability for well logging signals sampling, saving, displaying, expl…
以计算机为主控核心单元，主要实现数据的采集、保存、显示、解释和打印输出等功能。
The kernel of this system is computer. The system has the ability for well logging signals sampling, saving, displaying, expl…
以计算机为主控核心单元，主要实现数据的采集、保存、显示、解释和打印输出等功能。
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