sinusoidal envelope是什么意思

网络释义

用法例句

Illustrating ellipse and sinusoid curves,the coordinate conversion and programming in the process of using macro command were stated.

探讨了常见非圆弧曲线的加工方法,并以椭圆及正弦曲线为例,叙述了在使用宏指令加工过程中坐标值的数据转换及程序编制。

In this paper we discuss the representation of integral circle,cycloid and sinusoid on a period by uniform C-B-splines of degree 3.

本文给出了整圆、一个周期上的摆线及正弦曲线的三次均匀C-B样条表示。

A digital frequency synthesizer without ROM look up table is presented,a piecewise linear interpolation scheme is used to approximate a sinusoid function.

该方法使用具有分段连续的线性分段来近似正弦函数曲线的第一象限部分,根据正弦曲线的对称性,构成完整的正弦曲线。

Considering the sine curve as the primary equation of hydraulic geometry andsolving togather with continunity eqution of water flowing and other relative equations, depth, breadth and slope of sinuous channel have been deduced.

选用正弦曲线的河床形态作为原生的河相关系式，与水流连续性等方程联解，导出蜿蜒型河道的河相关系式。

A real-time fast interpolation algorithm for hdical and sine curves based on the principleof time-slicing method is proposed.

提出了一种基于时间分割法的带前加减速控制的螺旋线及正弦曲线的快速插补算法，并分析了其插补精度；该算法具有速度快、精度高等优点。

This paper discusses a method of synthesizing free curve and sine curve.

本文提出自由曲线和正弦曲线合成的方法,通过调整正弦曲线的幅值和频率,改变合成曲线的形状,这种方法易于实现和分解,并可用于描述随机形状。

The Development of the Courseware of Applying Visual Basic Language to Simulating "Drawing Image of Sine Function with Sine Line";

利用Visual Basic语言模拟“用正弦线作正弦函数图象”的课件开发

a wave whose waveform resembles a sine curve.

波形类似正弦曲线的波。

Nonlinear Analysis of Large Span Cable Structure Using a Tow-Node Curved Element;

大跨度悬索结构正弦曲线单元几何非线性分析

The waves are sinusoidal in nature, and they have an amplitude and a frequency.

声波实质上是正弦曲线，它有振幅和频率。

analysis of a periodic function into a sum of simple sinusoidal components.

周期函数解成简单正弦曲线之和的分析。

Establishment of 1D Quantitative Theoretical Model of Base-level Cycle of Sinusoidal Curve Stratigraphy

正弦曲线型地层基准面旋回一维定量理论模型的建立

Frequency-domain reflectometry( FDR): The loop is sounded with a swept sinusoid to identify frequencies that either resonate or are“ dead.

频域反射器（DR）用一个扫频正弦曲线来探测哪些频段是共振的还是“静默”的。

Adopting the form closure error and the motion transmission error of sine curve to carrying out theoretical analysis of this cam mechanism.

对该凸轮机构采用正弦曲线的形封闭误差和运动传递误差进行了理论分析。

Gradually, the separate sine waves have become visible.

逐渐地，“正弦波”曲线出现明显的分离。

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。

Chord:a line segment that joins two points on a curve.

弦:将两点用曲线连接起来的曲线段.

A line segment that joins two points on a curve.

弦将两点用曲线连接起来的曲线段

Alignment fields consist of very low distortion sinusoidal waves.

排队过程包含很低的扭曲的正弦波。

Establishment of Hyperbolic Sine Constitutive Relationship for Ti-6Al-2Zr-1Mo-1V Alloy

Ti-6Al-2Zr-1Mo-1V合金的双曲正弦本构关系

Thus every motion corresponding to any initial curve is no more than a sum of sinusoidal periodic modes.

这样，每一个对应于任一初始曲线的运动不外乎是正弦周期模式的和。

Influence to Calculation of Dropper Caused by Variation of Tension Force of Wires and Ropes in Curve Section

曲线区段线索张力变化对吊弦计算的影响

The nonlinear wave shape degenerates to a sinusoidal wave.

非线性波形衰减成正弦波。

On the Solution of the Linear Sine-type Difference Equation;

一阶线性正弦型差分方程的解的讨论

Sinuous Antenna Design With Its Backed Reflexible Cavity

超宽带正弦天线及其反射背腔的设计