backmen后卫
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 surface field solr cell背场太阳电池
backfilling behind abutments台背回填
Back View of Terracotta Army军阵北视
back-up acquisition system[计] 后备采集系统
back flowing guarantee ratio倒灌保证率
back/eye/heart trouble背痛;眼/心脏病
Back to Latest Weather Photo返回最新天气照片
Backflow in front of loading加载前回流
back saw with plastic handle塑柄手锯
back-up overspeed governor备用超速保安器