常见例句雙語例句Otherwise, such relief ( spitting) can occur when the second check is fouled during emergency backflow or resulting from a water hammer condition.此外,在緊急廻流或出現水鎚現象時,如果第二止廻閥受到汙染,則這種安全閥可能出現釋放(噴濺)。 返回 fouled condition