英文词源
- ratio (n.)
- 1630s, "reason, rationale," from Latin ratio "reckoning, numbering, calculation; business affair, procedure," also "reason, reasoning, judgment, understanding," from rat-, past participle stem of reri "to reckon, calculate," also "think" (see reason (n.)). Mathematical sense "relationship between two numbers" is attested from 1650s.
中文词源
ratio：比，比率，比例；传动比；变换系数
词根词缀： -rat-计算,思考 + io
该词的英语词源请访问趣词词源英文版：ratio 词源，ratio 含义。
来自拉丁语 ratio,思考，计算，部分，词源同 rate.-io,名词后缀。引申词义比率。
来自拉丁语 ratio,思考，计算，部分，词源同 rate.-io,名词后缀。引申词义比率。
