短語詞組短語oil scavenging passage 滑油回油路plugged oil supply passage 堵塞的供油通道fuel oil equivalent passage 燃油管道engine oil supply passage 發(fā)動機機油供油道plugged oil flow passage 堵塞的油通道main oil distributing passage 主油道oil supply passage 供油通道oil return passage 油回流管道;油回流管道英語;翻譯oil flow passage 油流動通道 返回 oil passage