back-stop 本壘后的位置back-stepping 反推back-step shot [體育]后撤步投籃back-step procedure [交通運(yùn)輸工程]逐步退焊法back-step n.折標(biāo)back-steam 回汽back-stabbing adj.陰險(xiǎn)的；小人的；暗箭傷人的back-stab v.以卑鄙的手段陷害back-spin 切球back-space n.返回；退格back-slope n.后坡back-slip 背向滑步back-sliding nappe [能源科學(xué)技術(shù)]后滑推覆體back-slant [計(jì)] 反斜線, 反斜杠back-slang (n.) back-slagging [能源科學(xué)技術(shù)]爐后出渣爐底出渣back-sihing 回淤back-sight video [電子、通信與自動(dòng)控制技術(shù)]后視攝像back-sight 后視back-shutter 百葉窗