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十字管 shízìguǎn
met. cross
oil cross pipe; cross tee
tech. cross branch; cross pipe (接头); pipe cross; crossbar
十字四通
auto. cross branch
十字管: 30 phrases in 10 subjects
Automobiles1
Chemistry1
Construction2
Electronics1
Engineering geology1
General2
Oil / petroleum2
Shipbuilding1
Space1
Technology18