Insulating Oil Testers is a kind of effective tool for testing the dielectric oil breakdown voltage in power field.
绝缘油击穿电压测试仪就是电力系统中测试绝缘油耐压强度的测试仪器。
Oil and gas well drillers, servicers, testers and related workers.
石油和天然气钻井工人，服务人员，测试人员及有关人员。
Oil and gas well drillers, servicers, testers and related workers.
石油和天然气钻井工人，服务人员，测试人员及有关人员。
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