在德国，内燃动车采用液力传动技术比采用电传动技术的历史要悠久。
In Germany, the history of applying hydraulic transmission technology to DMUs is really longer than that of applying electric transmission technology.
GY QX 30液力传动变速箱是针对出口内燃叉车专用、国内高端用户而开发的。
GYQX30 hydraulic transmission is developed for exported combustion forklift and domestic high-end customers.
对内燃机车液力传动油的特性及要求等作了介绍，同时叙述了液力传动油的国内外概况，介绍了新型液力传动油的研究和应用情况。
The general conditions of the research process of the metal setting problem of the high friction composition brake shoes at home and abroad are introduced.
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