back-shu acupoints [醫(yī)藥科學(xué)]背俞穴back-shock n.反沖back-setting effect [能源科學(xué)技術(shù)]逆流效應(yīng)back-seated valve [機(jī)械工程]后座閥back-seat passengers [新聞學(xué)與傳播學(xué)]后座乘客back-seat driving 干涉與自己職責(zé)無關(guān)的事情的人 (back-seat driver的變形)back-seat driver 干涉與自己職責(zé)無關(guān)的事情的人back-scratcher 背撓back-scattering thickness gauge [經(jīng)濟(jì)學(xué)]反向散射厚度計反背散射厚度計back-scattering of thick samples [物理學(xué)]厚試樣回散射back-scattering gauge [經(jīng)濟(jì)學(xué)]反向散射測量計[能源科學(xué)技術(shù)]反向散射測量計back-scattering 后向散射back-scatter 反散射back-sawn adj.弦向鋸切的back-row 后排back-roll 回原地再起動,倒卷,反繞back-ridge 洋脊背側(cè)back-rest chair [經(jīng)濟(jì)學(xué)]靠背椅back-rest n.靠背椅back-resistance n.反向電組