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单词 sine
释义

sine
saIn
(abbreviation sin) n [C]
specialized (in a triangle that has one angle of 90。) the RATIO of the length of the side opposite an angle less than 90。divided by the length of the HYPOTENUSE (= the side opposite the 90。 angle)
正弦 ☆ COSINE, TANGENT TRIANGLE

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更新时间:2025/8/9 6:53:16