direct buried cable 直埋电缆
direct buried transformer 直埋式变压器
direct-buried insulation pipe 直埋保温管道
direct buried tube 直埋管道
direct buried pipe 直埋技术
direct-buried bolts 直埋螺栓
When lightning strikes a direct buried communication cable, the over voltage produced on the cable is inevitable.
雷击直埋通信电缆产生的过电压危害非常严重。
The result of cathodic protection has direct relationship with buried pipelines life span and operation safety.
阴极保护效果直接关系到埋地管道的寿命和运行安全。
When lightning strikes a direct- buried cable, the over-voltage produced on the cable is inevitable.
当雷击直埋通信电缆时，必然在电缆上产生过电压。
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