正弦函数 meaning in English
sine function
sinusoidal function
trigonometric function
Examples
- Emulation on nonsinusoidal single - phase and nosinusoidal balanced three - phase systems are also given . there are nine kinds of arithmetic of ac sampling based sinusoidal and periodic modal in this paper
本文还综述了基于正弦函数和周期函数模型的9种交流采样算法，分析了影响测量精度的原因并给出了解决措施。 - On the one hand , the idea of watermarking is used by slightly adjusting text format , which changes the grayscale of characters by sine function ; on the other hand , the algorithm considers the structure of chinese document and information of chinese character during the embedding
一方面保留微调文本格式的思想,利用正弦函数控制字符的灰度值;另一方面在水印嵌入时,结合了中文文本的结构信息和汉字信息。 - In this paper , according to the periodically active characteristics shown in the historical earthquake data in this region since 1900 , we describe the rule of seismicity with sine function and furthermore make a preliminary forecast of the seismicity intensity and the developing trend in northeast china till the year of 2008 by using the periodogram of time sequence and other analytical methods
摘要根据东北地区1900年以来的历史地震资料所显示的周期性活动特点，用正弦函数描述其地震活动规律，并结合时间序列的周期图及其他一些地震活动性分析方法，对该地区未来1 ~ 3年地震活动发展趋势和地震强度作了初步预测。 - A study on the proposed scanlan linearity has discovered that if the self - excited loads and movement of the model and velocity constitute a linear relationship , and the model vibration accounts for a sine function of the frequency , the rate of the high - order harmonic waves should be quite small
考查了scanlan的线性假定：如果自激力与模型运动的位移、速度成线性关系，模型振动是某一频率的正弦函数，那么相应的自激力也应是这一频率的正弦函数，高次谐波的分量应极小。