This will mean installing a three-way motorised valve, a cylinder thermostat and making some changes in the pipe layout.
这将意味着安装一个三通电动阀，一个气缸恒温器并对管道布局进行一些更改。
2
Two design strategies that three-wayvalve control unsymmetrical cylinder and four way valve control symmetrical cylinder were analyzed from principle and system structure aspects.
According to structural characteristics of a flapper valve, flapper valves, butterfly valves, ball valves, diaphragm valves, Angle valves, through the valve, three-wayvalve.