draft tube

常用短語

elbow draft tube肘形尾水管

draft tube cone尾水管錐管

draft tube elbow尾水管肘管

draft tube tunnel尾水管洞

draft tube liner尾水管里襯

conical draft tube錐形尾水管

draft tube gate chamber尾閘室

Draft tube gate尾水閘門；尾水門

turbine draft tube水輪機尾水管