A.电源未接地 B.无线电干扰 C.扭矩传感器或接头受潮 D.附近电器漏电干扰
A.0.5~0.7 B.0.7~0.8 C.0.8~1.0 D.1.0~1.2
A.30% B.50% C.85% D.100%