短語詞組短語oil drilling -rig electric drive system 石油鉆機電傳動系統(tǒng)oil -drilling rig mechanic 石油鉆探鉆機技工的oil consumption per rig -month 每鉆機臺月耗機油量;每鉆機月消耗機油Oil -film bearing test rig 油膜軸承實驗臺 返回 oil-rig