| 词汇 | cosine |
| 释义 | co·sineBrE /ˈkəʊsaɪn/ NAmE /ˈkoʊsaɪn/ noun (abbreviation cos ) (mathematics数学) the ratio of the length of the side next to an acute angle in a right-angledtriangle to the length of the longest side (= the hypotenuse)余弦 ➡ compare sine, tangent (2 ) |
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