高分辨率三极断面测深
High-resolution third-pole sectional sounding
三点—三极超前探测方法
3 point- 3 poles lead survey method
三极断电路
three-pole circuit beaker
三极断电器
three-pole circuit breaker
三极断路器
triode circuit breaker
three-pole circuit breaker
three-pole circuit
breaker
三极反应溅射
three pole reaction sputtering
三极机械联动
mechanical three-pole-gang-operation