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				           		介绍了可编程控制器(PLC)在电梯控制中位置检测的应用程序设计。
						        					            	 This paper presents a PLC software design method for position detecting in the elevator control.
								    										 
								    				            	 youdao 
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				           		介绍了可编程控制器(PLC)在电梯控制中位置检测的应用程序设计。
						        					            	 This paper presents a PLC software design method for position detecting in the elevator control.
								    										 
								    				            	 youdao