赛斯专业词典
传动系润滑油泵吸油套
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N80油套钢
well tube steel N80
N80 well tube steel
传动系润滑油泵吸油套
power train oil pump suction cover
油套
casing
oil jacket
油套分注
oil casing stage injection
油套-套管环形空间
tubing-casing annulus
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