tubing
noun
ˈtjuːbɪŋ
noun
1
tubes
in
general,
especially
when
connected
together
into
a
system
〔尤指连成一个系统的〕管道，管子
rubber
tubing
橡皮管
2
the
activity
of
floating
on
a
river
on
a
large
INNER
TUBE
for
fun
内胎漂流