The cylinder drives a piston extraction and play materials, and by the one-way valve to control the flow of materials, the magnetic switchcontrol cylinder stroke, which adjust the filling volume.
通过气缸带动一个活塞抽取和打出物料，并由单向阀控制物料流向，由磁环开关控制气缸行程，即调节灌装量。
2
It introduces the functions and characteristics of railways telex automatic switch network, the volumecontrol of telex network, operation guarantee of network and effects of network operation.
介绍了铁路电报自动交换网的功能特点，电报网的流量控制，网络运行保障及效果。
3
The volumecontrol circuit is composed of a programming switch and a computer storing magnifying executive circuit, and can realize the automatic alarming volumecontrol.