詞語：water-seal
water-seal的意思
water-seal closet 釋義：水封廁所;water-seal break 水封破裂;Water-seal vacuum valve 真空、水封閘閥;
water-seal的參考例句
1.Various car, water-seal. 各種油封、水封。
2.The timely removal of sewage water-seal inside the accumulation objects, and ensure the normal functioning water-seal closure; 及時清除下水道水封裡面的積存物，保證水封的封閉功能正常；
3.Under the current design requirements, building Mainland leak "defected bends, " "water-seal" should reach 3-5 centimeters deep. 按照目前設計規範的要求，建築物內地漏的「反水彎」的「水封」深度應該達到3至5公分。