trigonometry
/ˌtɹɪɡəˈnɒmətɹi/ 名词 C2中文： 三角法、三角学
- The branch of mathematics that deals with the relationships between the sides and angles of (in particular) right-angled triangles, as represented by the trigonometric functions, and with calculations based on said relationships. · Historically, trigonometry has been applied in areas such as geodesy, surveying, celestial mechanics and navigation.
复数 trigonometries
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“‘When my old tutor used to give me an exercise in trigonometry, it always took the shape of measuring heights.
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