月亮词典
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syphons
弯管
常用释义
词性释义
弯管
例句
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These
canals
are
frequently
excavated
through
rock
,
and
require
tunnels
,
flumes
,
syphons
, aqueducts
and
open
concrete
-lined
channels
.
这些水渠往往要凿通岩石，并需要地道、引水沟、弯管、渡漕和混凝土水道。
Screwed scaling
plugs
for
syphons
of
drain
fittings
-
Part
1:
Plugs
of
copper
-
zinc
alloy
排水弯管配件用螺纹密封塞.第1部分：铜锌合金塞