以犁煤器为控制对象，通过找出影响其抬起和落下的关联条件，设计出了通用的PL C功能块。
Taking coal plough as control object and finding association condition influencing on lifting and falling of coal plough, it designed general PLC function block.
就侧卸式刮板输送机犁煤板的功能及设计参数进行了分析，提出了犁煤板的主要设计参数。
Alloy design parameters and application of the plough plate take in armoured face conveyor with side discharge unit and explain its main parameters.
环式卸煤机犁煤盘、卸煤盘的拼装制作工作台，属于机械零部件加工的工 装。
The utility model provides a ring-type workbench for assembling and manufacturing a coal plough disc or a coal unloading disc of a coal unloader, and belongs to tooling for processing machine parts.
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