查询词典 back up

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 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

back-acting shovel：反铲挖土机

back 背 | back-acting shovel 反铲挖土机 | back-angle counter 逆向散射粒子计数器

back-acting shovel：反铲铲土机

back wool 背部毛 | back-acting shovel 反铲铲土机 | back-bone style arch structure tent 脊骨式拱架帐篷

back-acting hay tedder：反向作用式摊草机

back-acting hay tedder ==> 反向作用式摊草机 | back-acting shovel ==> 反铲铲土机 | back-and-forth bending test ==> 反复弯曲试验

back-angle counter：逆向散射粒子计数器

back-acting shovel 反铲挖土机 | back-angle counter 逆向散射粒子计数器 | back-arc basin 弧后盆地

back-angle counter：记录逆向散射粒子的计数管

back-angle ==> 反向角 | back-angle counter ==> 记录逆向散射粒子的计数管 | back-arc area ==> 弧后区

counter, back-angle：背向角计数器

大气压力计数器 counter, atmospheric-pressure | 背向角计数器 counter, back-angle | 背向式计数器 counter, back-to-back

back-lighted shot：逆光摄影

"透光雕绘","back-light scribing" | "逆光摄影","back-lighted shot" | "后向散射","back-scattering"

phenol red：酚红,苯酚磺酞

phenol reagent 酚试剂 | phenol red 酚红,苯酚磺酞 | phenol red test 酚红排泌试验

accessory equipment：附件

accessory equipment 辅助设备 | accessory equipment 附件 | accessory part 附件