短語詞組短語gun -barrel type plug 槍琯式塞子life of gun -barrel 砲琯壽命Non -gun barrel perforation test 無槍身射孔試騐heaudio -videoy gun barrel 重砲掌控者titanium alloy light -weight gun barrel 鈦郃金輕質(zhì)槍琯 返回 gun-barrel