常見例句雙語例句As a new type of drainage and irrigation of the dock, siphon has the advantages of simple structure, protection against sand and water and rapid set-off.虹吸管是作為船塢灌水排水的一種新型式，具有結構簡單、防冰防沙、斷流迅速的優(yōu)點。 返回 siphon irrigation