But an oak which has fewer but bigger leaves with stronger reflections, produces a jagged wave form, or what we called a rough echo.
但是,橡树的叶子少而又大,反射力较强,会产生参差不齐的声波,或所谓的“粗糙回声”。
The main work of the thesis is about drawing the wave form and printing the report .
本论文的主要工作是根据陀螺仪的漂移数据,作出陀螺漂移的波形,并对报表打印。
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 stretch distortion often present itself in wave form when conventional dynamic correction is used.
常规动校正使波形发生拉伸畸变,尤其是浅层更为严重。
Thus, by controlling the pressure wave form, the desired trajectory of the grinding head can be obtained.
因而控制压力的波形即可得到所需要的研磨头的运动轨迹。
It was observed from the low frequency signal on the microwave mixer that the wave form was clear and stable.
观察从微波混频器上取得的低频信号,波形清晰、稳定。
Well, it seems that light has a wave form, so if a do this you can now see how you are getting an interference pattern.
看来光线是有波形变化的,这样一来你可以看到相互干扰模式是怎样产生的。
Therefore the wave form aberration rate must first be tested in the full scale test of tree? Phase induction motor.
因此,在三相感应电动机的型式试验中,首先必须测试电源电压的波形畸变率。
The regularity of the change of the unstable oscillation wave form and the structure of the power spectrum were analysed.
计算并绘出了非稳区域边界,分析了非稳振荡波形变化规律及其模结构。
The Paper discusses the advantages of DSP used to control motor, the wave form of driving current, and the driving effect.
本文分析了使用DSP控制电机的优点,并给出了驱动电流波形,分析驱动效果。
"The wave form of the electric signal changes and at the level of the individual cell, it is changing its discharge," Markham said.
马克·汉姆表示:“单个细胞改变电流可令电信号波形发生变化。”
Utilize the wave form generator of 80c196mc can produce SPWM wave conveniently, and simplify the circuit of the control panel.
应用80c 196MC的波形发生器可以方便地生成SPWM波,简化了控制板的电路。
“The wave form of the electric signal changes and at the level of the individual cell, it is changing its discharge, ” Markham said.
马克汉姆表示:“单个细胞改变电流可令电信号波形发生变化。
In the analysis we found there exists the distortion of the wave form in initial part of the record obtained from the vibrometer.
问题是通常采用的位移测振仪所记录的制动反应,其初始波形有畸变现象,这一现象严重地影响了分析的准确性。
And it has functions of outputting different analog signals, impulse signal with different frequency, amplitude and different wave form.
同时具有输出各种模拟信号、不同频率和幅值的脉冲信号及各种波形信号的信号源功能。
For the electrocardiogram wave form, based on the hierarchical structure, this paper presents a characteristic sample and description method.
针对心电波形,本文提出了一种基于层次结构的特征抽取和描述方法。
This paper analyzes and introduces the application study process of solving telescoping seam on the road bridge by wave form telescoping seam.
本文对波形伸缩缝在解决道路桥梁伸缩缝问题中的应用研究过程进行了分析、介绍。
There is another technique that USES a feature of the wave form which is quite good in most cases that identifies the second systolic shoulder.
还有另外一种技术能利用波形的一些特征,在大多数情况下它的效果非常好,能识别第二个收缩性平台。
If the modulation rate is high, it is possible to smooth out the pulse train using passive electronic filters and recover an average analog wave form.
如果调制率高,是有可能顺利进行,脉冲列车使用被动电子过滤器和收回平均模拟波形。
Wave form block conveyer belt adopt trough degree greater than 0.03 baseband and block, horizontal baffle (level transport) make by two vulcanization.
波形挡边输送带采用成槽度不大于0.03的基带和挡边、横隔板(水平输送可不要)经两次硫化制成。
The primary function of the auxiliary signal generator is output sine wave or SWIFT (stored wave form inverse Fourier transform) wave at the scheduled time.
辅助信号发生器的主要功能是在规定的时间段内输出正弦波或者任意波形。
Changing the wave form of the main current while other experimental parameters being unchanged, the laser spike and the position of background light were contrasted.
在其他实验参量不变的情况下,改变主脉冲电流的波形,比较了激光尖峰与背景光的相对位置。
The influence of the principal parameters of optical chirp reversal devices on ability to restore signal wave form and pulse duration has been analysed and simulated.
分析和数值模拟了用瞬态简并四波混频实现光学啁啾反转的器件的主要参数对恢复信号波形和脉冲宽度能力的影响。
The leakage of microstrip line has two forms: the surface wave form and the space wave form, and the higher order modes on microstrip line mostly leak as space wave form.
微带线泄漏一般分为表面波形式和空间波形式两类,其中微带线高次模泄漏一般以空间波的形式发生。
The results agree with previous studies that have analyzed single photons whose precursor and main wave form have not been separated, which have reported an oscillatory structure.
结论与先前的研究相同,虽然先前的研究分析的是尚未将前驱和主波分离的光子,它们显示出了一个振荡结构。
It introduces the principle of voltage inverter, analyzed the reason of distortion of output voltage and current wave form, as it is loaded with hysteresis synchronous motor.
本文介绍电压逆变器的原理,分析带上磁滞同步电动机这一负载后逆变器输出电压电流波形畸变的原因。
The new techniques include oversampling technique in digitalization of seismic wave form, spectrum contraction technique in data - transmitting and error-controlling and so on.
这些新技术包括地震波形数字化的过采样技术,数据传输中使用的紧缩频谱调制技术和差错控制技术等。
Since a partial discharge pulse waveform is irregular and the spectrum of each pulse is different, a pulse wave form will be distorted at the measuring terminal of the circuit.
由于局部放电脉冲波形是不规则的,显然,它们的频谱是不同的,这将导致在测量点上脉冲波形的畸变。
The significant factors which exert an influence on instantaneous fluctuation of motor current are in sequence :Vari-speed wave form, vari-speed amplitude and vari-speed frequency.
在变速参数中影响电机瞬时电流波动最为显著的因素依次为变速波形、变速幅度和变速频率。
Transmitter is the device which changes electrical pulse signal into optical pulse signal, and then transmit the optical signal in wave form by laser diode or light-emitting diode.
光发射机的功能是将电脉冲信号转换成光脉冲信号,并以数字光纤通信系统传输性能所要求的光脉冲信号波形从光源器件的尾纤发射出去。
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