查询词典 pace back and forth

back stairs：后楼梯, 诡秘之手段或方法

back stagger || 后向斜罩 | back stairs || 后楼梯, 诡秘之手段或方法 | back stamp || 底印, 商标印

back step method：逐步退焊法

back steam 回汽 | back step method 逐步退焊法 | back step sequence 后退焊接顺序

back step method：[后]退焊法

后支撑,后拉索 back stay | [后]退焊法 back step method | [后]退焊顺序 back step sequence

back step method：退焊法;后退熔焊法

背材 back piece | 退焊法;后退熔焊法 back step method | 退焊顺序;后退熔焊顺序 back step sequence

back step method：退焊法

39 后支撑,后拉索 back stay | 40 退焊法 back step method | 41 退焊顺序 back step sequence

back step sequence：后退焊接顺序

back step method 逐步退焊法 | back step sequence 后退焊接顺序 | back step welding 逐步退焊法

back step sequence：[后]退焊顺序

[后]退焊法 back step method | [后]退焊顺序 back step sequence | [后]退焊接 back step welding

Move back. Step back, step back：向后,都退后

Shoot it!|开枪 | Move back. Step back, step back.|向后,都退后 | It's beautiful.|真美啊

back turn：逆向匝, 反作用匝

back turn pulley || 倒带轮 | back turn || 逆向匝, 反作用匝 | back up copy || 副本

back turn pulley：倒带轮

back tube sheet ==> (锅炉的)后管板 | back turn pulley ==> 倒带轮 | back twisting ==> 反向加捻

air ventilator：通风管

air purifier 空气滤清剂 | air ventilator 通风管 | air-bleed 空气分泄器

sound motion picture, talkie：有声电影

silent cinema, silent films 无声电影 | sound motion picture, talkie 有声电影 | cinemascope, CinemaScope 西涅玛斯科普型立体声宽银幕电影,变 形镜头式宽银幕电影