backemfn.反电动势
backn.后面;背脊;靠背;后背;后卫vt.支持;后退adv.向后地adj.向后的;后面的;偏远的;过时的;积欠的
back-rocker driving后摇杆驱动
backfill of earth dam土坝填筑
back inlet gully trap背入集水沟气隔
back pressure turbine背压透平机,背压透平
Backhau's towel clamp间隔信号,反射波,回波,返波
back donating bonding反馈键
back-up roll sleeve支承辊的辊套
back order memorandum延期交货通知单
backsteppingalgorithm逆推算法
back through the gate退出了大门