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Google | Forvo | +
自由后座
 自由后座
tech. free recoil
| 炮架
 炮架
gen. guncarriage
avia. carriage
chess.term. gun mount; cannon mount; gun mount

to phrases
自由后座 zìyóu hòuzuò
tech. free recoil
自由后座
: 2 phrases in 1 subject
Technology2