propelling machine meaning in English

牵引机

Fresh water is used to feed people and propel machines
淡水供人饮用，也用来推动机器。
Forestry self - propelled machines . measurement method of noise emitted when in motion
林业自行式机械动态车外噪声.测量方法
Forestry self - propelled machines . measurement method of noise emitted when stationary
林业自行式机械静态车外噪声.测量方法
Forestry self - propelled machines . measurement of noise at the operater ' s ears . survey method
林业自行式机械驾驶员耳旁噪声.测量方法
Agricultural tractors and self - propelled machines - test method for enclosure pressurization systems
农业拖拉机和自走式机具密封驾驶室加压系统试验方法

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