短語(yǔ)詞組短語(yǔ)workover r rig 修井機(jī)barge workover rig 駁船修井設(shè)備portable workover rig 移動(dòng)式修井機(jī)inclined workover rig 傾斜式修井機(jī)truck mounted workover rig 輪式作業(yè)機(jī)pressure balanced workover rig 不壓井修井機(jī)offshore workover rig base 海洋修井機(jī)底座conventional workover rig 常規(guī)修井作業(yè)機(jī) 返回 workover rig