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for subject
Ecology
containing
管头
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all forms
Chinese
English
压头管线
penstock
变径管接头
reducing nipple
尽头干管
dead-end main
开口接头管
open-joint pipe
Y 形瓦管接头
wye
支管接头
branch connection
滤头管式地下排水管
滤头管式底下排水管
pipe-and-strainer underdrain
螺纹套管接头
screwed socket joint
锁合接头管
lock joint pipe
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