比例常数: constant of proportionalityproportion constantproportional constantproportionality co tantproportionality constantproportionality factor
Example Sentences:
1.
All topographic maps except the 1 to 1000 basic map series are bilingual and the latter will be bilingual by 1999 除1 ： 1000比例基本地图系列地图外，所有地图都以中英文说明，而1 ： 1000比例系列地图也将于一九九九年转为有中英文说明。
