主缸的速度换接与安全行程限制通过行程开关来控制；
Master cylinder for the speed of access restrictions and security through the trip exchanging to control switches.
该阀具有很高的切换速度和频率，可以用来作为大流量高速开关阀的先导控制阀，也可以在小流量回路中直接作为控制阀使用。
It has the higher switching speed and frequency and can be used as the pilot valve for a larger flow rate valve, or as a direct control valve for small flow rate hydraulic loop.
该控制系统采用8098单片机为主体，适用于象GTR这样具有较高开关速度的大功率电源系统的控制。
The control system, based on 8098 singlechip, can be applied in the power supplies which have GTRs of high switch speed.
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