(页面存档备份,存于互联网档案馆) Hesselberg T. Exploding beetles suggest a new pressurereliefvalve and fluid discharge system. Life of science. 6 November 2007 [2021-03-18]
cock valve mechanism」,发表于6 January 1955,发行于3 June 1958 ; hysterisis issue. "Such flush tank valves as now commonly used are closed against the pressure of