trigonometry

英 [ˌtrɪɡəˈnɒmətri]

美 [ˌtrɪɡəˈnɑːmətri]

n.  三角学

BNC.37889 / COCA.29645

牛津词典

noun

• 三角学
  the type of mathematics that deals with the relationship between the sides and angles of triangles

柯林斯词典

• 三角学
  Trigonometryis the branch of mathematics that is concerned with calculating the angles of triangles or the lengths of their sides.

英英释义

noun

• the mathematics of triangles and trigonometric functions
  Synonym:trig

双语例句

• I didn't do much trigonometry at school.
  我在学校里没学多少三角学。
• The height of the mountain has been determined by trigonometry.
  该山的高度已用三角学测得。
• Itaccomplishes in seconds what had taken all day using old-fashioned surveying instruments and skill in trigonometry.
  原本采用老办法要一整天才能办成的事情，通过测量仪器和三角法，只需数秒钟。
• The climax of this work was the development of trigonometry.
  三角术的发展是这项工作的高峰。
• We may determine the height of a mountain by trigonometry.
  我们可用三角原理测定山的高度。
• If our predecessors understood the hadith the way some of us try to understand it, they would have never produced the great scholars who invented algorithms and developed trigonometry.
  如果我们的前辈以我们有些人试着理解的方式来理解这段圣训，他们绝对不会出现发明运算法则和揭示勾股定理的伟大学者。
• The Hindus, like the Greeks, regarded trigonometry as a tool for their astronomy.
  印度人和希腊人一样，把三角学当作他们天文学的工具。
• To measure by using trigonometry. at right angles to the plane of the horizon or a base line.
  用平面直角三角形计算工具测量与水平面或者基准面成直角。
• The optical rangefinder works by an application of trigonometry.
  光学测距器利用三角法工作。
• An algorithm used trigonometry to passively locating a moving emitter with direction of arrival ( DOA) and time difference of arrival ( TDOA) of the emitter signal is given.
  提出了一种利用平面解三角，并结合辐射源信号到达方向和脉冲到达时间差对运动辐射源进行单站无源定位的算法。