英语词汇“machine upkeep”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	machine upkeep
释义	machine upkeep [化] 机器保养; 机床保养
随便看	approach rail approach ramp approach receiver approach relay approach response approach road approach route approach route locking approach schedule approach section approach section length approach section of a highway level crossing approach section track circuit approach segment approach sequence approach sequence aircraft approach shot approach shots approach sign approach signal approach slow aspect approach-slow signal approach slow signal approach span approach spans 454135351 454143111 454143133 454143251 454143452 454143453 454153 45415334 4542512*34 45431112 车尘马迹车尾车尾儿车展车工车市车帐子车帘子车带车帮