阐述了液力偶合器在长距离胶带输送机多滚筒驱动和多头驱动中的特殊作用。
It expounded special functions of hydraulic coupling used in the drive of multi-drums and malti-ple heads mounted on long distance belt conveyer.
为了保证带式输送机的安全运行，提高其运输效率，就要增大传动滚筒的驱动力。
In order to ensure the safe operation of belt conveyor and improve its transportation efficiency, it is necessary to increase the driving force of the driving drum.
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