The valve shall be constructed with a molded diaphragm separating the air inlet from the potable water supply to prevent spillage 这种阀门结构应该是采用隔膜将空气进口与饮用水供应分离开来以防止泄漏或溢出。
2.
The valve shall be constructed with a molded diaphragm separating the air inlet from the potable water supply to prevent spillage 这种阀门应该配置一个模压隔膜,将空气进口与饮用水供水管道隔离开来,以防止泄漏或溢出。