It is comparatively difficult to record the accurate locations of faults on the wide-ranged power - transmitting line under the circumstance of lack of reference.
由于输电线路的分布范围较广，在没有参照物的情况下，准确记录故障发生的位置比较困难。
Hydraulic systems are power-transmitting assemblies employing pressurized liquid to transmit energy from an energy-generating source to an energy-use area.
液压系统是利用液体为介质把能量从动力源传递到消耗位置的动力传递系统。
Hydraulic systems are power-transmitting assemblies employing pressurized liquid to transmit energy from an energy-generating source to an energy-use area.
液压系统是利用液体为介质把能量从动力源传递到消耗位置的动力传递系统。
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