lengthgagen.长度计lengthn.长度；时间长短；距离；一段；距离的测量单位length of a formatted record格式化记录长度length of inflorescence time开花时长length-weight relationship体长体重关系length- measured telescope尺读望远镜length-measuring appliance长度测量器具length of reinforcement cage钢筋笼长度length of adventitious roots不定根长length of guaranteed service保修期length of main stem internode主茎节间Length of response data field响应数据域的长度