sine

英 [saɪn]

美 [saɪn]

n. 正弦

复数：sines　

BNC.26174 / COCA.20093

牛津词典

noun

正弦
the ratio of the length of the side opposite one of the angles in a right-angled triangle that are less than 90˚ to the length of the longest side

noun

ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle
Synonym:sin

Let us plot both the sine and the cosine curves.
假设我们同时绘制正弦和余弦曲线。
Successful agricultural reform is also a sine qua non of Mexico's modernisation.
成功的农业改革也是墨西哥实现现代化的必要条件。
This is done by applying one sine wave to the two vertical plates.
其方法是把一个正弦波加到两个垂直板上。
Then, the current of the paralleled branch coils excited by sine voltage is obtained by way of phasor.
然后，采用相量法求解出正弦电压激励下各并联支路的电流；
Study on Sine Wave Frequency Estimation Method Based on DTFT
基于DTFT的正弦波频率估计方法研究
The phase velocity basically tells you how fast a pure sine wave ( with a single frequency) moves.
相速度可以告诉我们一个纯正弦波的传播速度。
On some identities of sine and cosine functions;
目的研究正弦函数和余弦函数的一些计算公式。
The Research and Realization of Sine Wave Inverter in Wind Power System
风力发电系统中正弦波逆变器的研究与实现
We derive the addition formulas for sine and cosine from the arithmetic of complex numbers.
用复数算术推导了正弦，余弦的加法公式。
Two significant technologies were analyzed for stage lighting control system sine wave dimmer and network management in this paper.
对灯光控制系统中的两项重要技术&正弦波调光和网络化管理进行分析和探讨。