... unit distributor 集因素电器 unit head machine 组合头钻床 unit injector 团体式喷油器 ...
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unit head boring machine [机] 动力头式镗床
unit head milling machine 动力头式铣床
unit head tapping machine 动力头式攻丝机
unit head turning machine 动力头式车床
unit head drilling machine 动力头式钻床
unit head broaching machine 动力头式拉床
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The under electrical machine and leading cable head used in oilfields were of poor quality, which has greatly influenced the operation of the unit.
油田使用的潜油电机引接电缆头密封质量差，严重影响机组正常运行。
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