| 释义 |
co.sineHkEJ7saIn, $5koJ-(abbreviation cos) n [C]specialized (in a triangle that has one angle of 90°) the RATIO of the length of the side next to an angle less than 90°divided by the length of the HYPOTENUSE (=the side opposite the 90° angle)余弦 ☆ SINE, TANGENT
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