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back-laced corset：背镶花边的紧身胸衣

back-hoe front end loader 后挖前卸式挖装机 | back-laced corset 背镶花边的紧身胸衣 | back-lining and head banding machine 书脊粘纱布顶带机

back court：球场的后场

back board 篮板 | back court 球场的后场 | back court man 后卫

back digger：反铲挖掘机

back diffusion 反向扩散 | back digger 反铲挖掘机 | back discharge 反向放电

back digger：反铲挖土机

back cushion 靠垫 | back digger 反铲挖土机 | back firing detective relay 逆弧检测继电器

back donation：逆给予

back coordination 逆配位 | back donation 逆给予 | back electromotive force 逆电动势;反电动势

back donation：反馈(性)

back and fore ribs 牛胴背部 | back donation 反馈(性) | back extraction 反提取;反萃

back-hand drop shot：反手放放球

back-hand 反手击球 | back-hand drop shot 反手放放球 | back-hand half-volley 反手半截击

back-hand drop shot：反手放球

back-hand 反手击球 | back-hand drop shot 反手放球 | back-hand half-volley 反手半截击

back-hand drop shot：反手放短球

back-hand 反手击球 | back-hand drop shot 反手放短球 | back-hand half-volley 反手半截击

back echo：回波

"负效放电","back discharge" | "回波","back echo" | "反萃取","back extraction"

the bird of wonder：凤凰;长生鸟

the bird of peace鸽子 | the bird of prey 猛禽 | the bird of wonder凤凰;长生鸟

flange rail：平底轨条

"凸缘皮带轮","flange pulley" | "平底轨条","flange rail" | "凸缘肋","flange rib"