钳形接地电阻测试法
pincer-like ground resistance test method
三线接地电阻测试法
three-wire ground resistance test method
接地电阻测量
grounding resistance measurement
grounding resistance measuring
接地电阻测量仪
grounding resistance measurement instrument
Groundmeter
接地电阻试验器
grounded resistance tester
回路电阻测试仪
circuit resistance tester
loop resistance testing instrument
火花塞电阻测试仪
spark plug resistance tester
绝缘电阻测试仪
insulated resistor tester
insulated resistance tester
钳型电阻测试仪
clamp earth resistance tester