sectoria山杏的, 瓣状的sectorn.部门；部分；区域n.[计]扇形；扇区vt.使分成部分sector characteristic curve扇形区域特性曲线sectors of national economy[经] 国民经济部门sectorial moment of inertia扇形惯性矩sector-field spectroscope扇形场分光镜sectorial cross - section扇形截面sector split-drain MAGFET扇形分裂漏磁敏晶体管sector-type concrete ring扇形混凝土衬砌块Sector Command Headquarters总应力sectorial harmonic function扇形调和函数sectorial rate of investment[经] 部门投资率

1. The fuel rack requires little force to accomplish its motion.
   油泵齿条几乎毋须费力就能使之移动。
2. The rack type pusher designed by Chongqing Steel is in good condition.
   所设计的齿条式推钢机使用状况良好。