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升沉补偿器
oil motion compensator
tech. heave compensator (海上钻探时,钻探船随波浪升沉而钻压不变); wave motion compensator (海上钻探时,钻探船随波浪升沉而钻压不变)
海洋钻探船升沉补偿器
eng.geol. heave compensator
升沉 补 偿器: 2 phrases in 1 subject
Oil / petroleum2