distancen.距离；路程；远方vt.与 ... 保持距离；把(对手)甩在后面distance jump跳远distance gage测远仪,测远器Distance term距离相关项distance ring定距环distance mark距离标记,距离标distance echo远回波distance decay距离衰减distance block定距块distance bound距离限distance throw投掷项目