A water heater's temperature and pressure relief valve must be piped to the nearest drain in order to avoid damage in the event the valve is actuated. 熱水器的降溫減壓安全閥必須用管道連接到最近的排水口，以避免萬(wàn)一閥門(mén)啟動(dòng)所造成的破壞。
Check the temperature-pressure relief valve to insure that the valve has not become incrusted with lime. 檢查降溫減壓安全閥是否被石灰堵塞。
Experimental results show that the optic-electric measurement system can meet the requirement of measuring voltage distribution of valve thyristors. 實(shí)驗表明本文研制的光電測量系統可以滿(mǎn)足測量換流閥晶閘管電壓分布的需要。
In this paper, the influence of the aforementioned charge dispersity at valve turn-off on thyristor terminal voltages is illustrated. 首先分析直流換流閥關(guān)斷時(shí)刻反向恢復電荷差異對晶閘管級端電壓的影響。
