What is obtained with the forging waste heat normalizing and controlled cooling technique is the coarse stable structure in a 20CrMnTi gear, but its cutability is good.
余热正火和常规的正火处理后，再经同样的工艺进行渗碳、淬火和回火处理，试验证明：其渗层和心部的组织、晶粒度及机械性能均相同。
In this thesis, Based on three dimensional wing inverse design theory proposed by Takanashi, a wing inverse design method based on Euler equation and“direct inverse iteration,residual correction “concept is presented.
以Takanashi提出的三维机翼设计理论为基础 ,研究与发展了一个基于欧拉方程和“正 反迭代、余量修正原理”的机翼设计方法。
Fine Drive of the Step Angle with a Sine/Cosine Divider on Stepping Motors;
步进电机步距角的正余弦细分原理
Sine-cosine ROM
正余弦函数固定存贮器
This requires two sine-cosine resolvers.
这就需要两个正余弦分解器。
Angular increment sine-cosine arithmetic unit
角增量正余弦函数运算器
Axiomatic Definition of (Co)sine with Complex Variables;
复变量正余弦函数的公理化(等价)定义
The Design Method of Digital SIN-COS Function Generator
数字式正余弦函数产生器的实现方法
Implementation of Sine&Cosine Function Based on Look-up Ttable and Taylor Expansion
基于查找表和Taylor展开的正余弦函数的实现
sine-cosine resolver
正弦－余弦解算装置
On Calculation Formula of Sine Function and Cosine Function;
关于正弦函数和余弦函数的计算公式
Research on sine and cosine transform of broad sense Fourier
广义Fourier正弦、余弦变换研究
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。
Symmetry of Sine and Cosine Function Graphs;
正弦函数图像及余弦函数图像的对称性
New Proving of the Law of Cosines and the Law of Sines in En
E~n中n维余弦定理和正弦定理的新证明
The reciprocal of the sine of an angle in a right triangle.
余割直角三角形中一个角正弦的倒数
Let's now examine the simplest wave form where the profile is a sine or cosine curve
现在让我们来考察最简单的波形，它的剖面图是正弦或余弦曲线。
The expression for g can be rewritten in terms of trigonometric sines and cosines.
关于g的表达式可以重写成三角函数的正弦和余弦形式。
The cosine rather than the sine is customarily used in this case.
在这种情况下，习惯上用余弦函数而不是正弦函数。
Fast Drawing and Mutual Transformation of Sine and Cosine quantities;
在工程中正弦量与余弦量的快速作图和相互转换
A linearization method to design biorthogonal cosine modulation (BCM) filter banks is proposed.
介绍了一种用于设计双正交余弦调制滤波器组的线性化方法。
