The imported winch roller chain pins on the 3700 computerized logging system have broken many times and greatly affected to our work.
引进的370 0数控测井绞车滚筒链条销多次发生断裂，严重影响了该设备的正常投产。
The imported winch roller chain pins on the 3700 computerized logging system have broken many times and greatly affected to our work.
引进的370 0数控测井绞车滚筒链条销多次发生断裂，严重影响了该设备的正常投产。
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