"branch of mathematics that deals with relations between sides and angles of triangles," 1610s, from Modern Latin trigonometria (Barthelemi Pitiscus, 1595), from Greek trigonon "triangle" (from tri- "three" (see tri-) + gonia "angle" (see -gon)) + metron "a measure" (see meter (n.2)).
雙語(yǔ)例句
1. We may determine the height of a mountain by trigonometry.
我們可用三角原理測(cè)定山的高度.
來(lái)自《簡(jiǎn)明英漢詞典》
2. He received a low mark for trigonometry.
他的三角學(xué)分?jǐn)?shù)很低.
來(lái)自《現(xiàn)代漢英綜合大詞典》
3. The climax of this work was the development of trigonometry.
三角術(shù)的發(fā)展是這項(xiàng)工作的高峰.
來(lái)自辭典例句
4. The height of the mountain has been determined by trigonometry.
該山的高度已用三角學(xué)測(cè)得.
來(lái)自辭典例句
5. Until about 1450 spherical trigonometry consisted of loose rules based on Greek, Hindu and Arabic versions.