短語(yǔ)詞組短語(yǔ)overbalance perforating 過(guò)平衡射孔overbalance detail 失衡過(guò)重perforating overbalance 正壓射孔overbalance drilling 過(guò)平衡鑽井zero overbalance 零值超平衡overbalance pressure 正壓static overbalance 靜態(tài)正壓overbalance E 失去平衡aerodynamic overbalance 氣動(dòng)過(guò)量平衡 返回 overbalance