All the series model can match the surveillant of pressure and working stroke control by plc 全系列机型可加装监控压力和行程的plc电控箱
4.
It can meet the requirements under the condition without loads . the working stroke is 6mm . and the stepping frequency is 300times / minute 在空载的情况下，已基本能达到所要求的性能，其工作行程可达6mm ，步冲频率可达300次分。
5.
There is only one working stroke in four so a flywheel is needed to drive the crankshaft during the time that the engine is performing the non - power strokes 因为4个工作冲程中只有一个冲程作功，所以发动机处于非作功冲程时，飞轮带动曲轴旋转。
