正弦波形赋予了通过水道的结构轮廓的形状。
A sinusoidal waveform provides the structural silhouette shape across the channel.
给出了正弦波逆变器的主电路结构，分析了控制电路及电压前馈的工作原理。
The structure of the sine wave inverter is given, the working principles of the control circuit and voltage feedforward are analyzed.
这个电路以最简洁的结构实现了高纯净度正弦波输出，而且在较低的频率上也是如此。
This circuit provides high purity sine-wave output down to low frequencies with minimum circuit complexity.
文章以两相的纯净正弦电源为例，介绍一种两路交流电源的结构、原理、特点和实验结果。
In this article take two-phase pure sine power supply for example, introducing the construction, principle, characteristics and experiment result of a kind of two roads ac power supply.
研究了零电场和正弦电场作用下的磁量子结构中自旋电子的隧穿输运特性。
Properties of tunneling transmission in magnetic quantum structures have been analysed based on Schr dinger equation both in zero electric field and in sinusoidal one.
基于帧结构的匹配跟踪原理，提出了一种有效而灵活的正弦模型分解方法。
In this work, we developed and implemented an efficient and flexible method for sinusoidal modeling using frame_based matching pursuits.
本文以卷积为工具给出了正弦交流斩波信号谱结构的普适结果，这对滤波器的设计有指导意义。
This article shows the universal result of the frequency structure, which is connected with the chopped signal of the sine wave by convolution, this has guidance meaning to filter design.
该结构利用积分面积相等的原则确定开关角，通过串级叠加的方法得到标准正弦波输出。
In the structure, the (equal) integration area method was used to determine the control switch Angle, and the sinusoidal voltage wave was obtained by means of the concatenate superposition.
本发明电路结构简单，输出的交流电的波形为纯正弦波，输出的电压和频率稳定，不会随输入电压和负载的变化而变化。
The circuit of the invention is simple, the wave output is pure sine wave, voltage and frequency output is stable, they do not change with input voltage and load.
论文首先使用基于分段正弦基函数的矩阵束矩量法建模、分析了通孔结构。
Through hole is modeled mathmatically and solved by Piecewise Sinusoidal (PWS) basis function based matrix-penciled Moment Method.
与传统曲轴连杆结构压缩机不同的是，它采用带两个休止角段的凸轮驱动活塞，活塞的加速度选择为正弦加速度。
Compared with the reciprocating compressors with the structure of traditional crankshaft, it adopts a CAM with two repose Angle segment to drive the piston.
根据有限元分析结果及临床尺寸，设计了一种新型结构的镍钛合金支架，新型支架结构采用类正弦单元环加短直筋相连。
According to the results of FEA and clinical data, a new structural NiTi stent is designed. The stent is composed of the sinusoid-like element supporting frame and short struts.
通过结构光传感器获得三维信息，编程实现对薄板正弦曲线焊缝模型的建立。
Via the structured laser sensor's getting three-dimension information, the experiments achieve the modeling of sine welding seam part of sheet by using programming.
当系统存在不定性时，作者分别采用阶跃信号和正弦信号作为参照信号，将滑模变结构控制和PID控制进行仿真比较。
When the system exists uncertainties, the author compares sliding mode control with PID control adopting step signal and sine signal as a reference.
当系统存在不定性时，作者分别采用阶跃信号和正弦信号作为参照信号，将滑模变结构控制和PID控制进行仿真比较。
When the system exists uncertainties, the author compares sliding mode control with PID control adopting step signal and sine signal as a reference.
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