Rising the temperature continuously, when it in the valves runs over the temperature of drainage, the detrusion of top material causes the port A close. 温度继续升高,阀内温度超过该阀感温元件所排水温度时,顶杆的位移使A口关闭。
Detrusion \De*tru"sion\, n. [L. detrusio. See {Detrude}.] The act of thrusting or driving down or outward; outward thrust. -- {De*tru"sive}, a.