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				           		详细介绍一种新型皮带输送机张力自动控制装置的原理。
						        					            	 The principle of a new automatic equipment for belt conveyor tension controller is described.
								    										 
								    				            	 youdao 
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				           		详细介绍一种新型皮带输送机张力自动控制装置的原理。
						        					            	 The principle of a new automatic equipment for belt conveyor tension controller is described.
								    										 
								    				            	 youdao