語言選擇:
免費網上英漢字典|3Dict

reference system

資料來源 : WordNet®

reference system
     n : a system that uses coordinates to establish position [syn: {coordinate
         system}, {frame of reference}, {reference frame}]
依字母排序 : A B C D E F G H I J K L M N O P Q R S T U V W X Y Z