As the important tache, substation is the main surveillant and manipulative point of the electric network.
作为输配电系统中的重要环节, 变电站是电网的主要监控点.
Conclusions ECG can be used as a surveillant index in workers exposed to tetraethyl-lead petrol.
结论心电图检查可作为四乙基铅汽油作业人员的监护手段之一.
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