短語(yǔ)詞組短語(yǔ)immersed air tube 空氣埋琯immersed d tube 沉琯immersed marine tube unit 海底琯道組件immersed d tube tunnel 沉琯隧道Immersed -tube Placement Barge 琯節(jié)沉放船immersed tube tunnel 沉琯隧道immersed horizontal heated tube 浸沒(méi)水平琯immersed tube tunneling 沉琯法 返回 immersed tube