The spot G wave may be active ingestion of aphid during stylet pathway (C wave phase);
初步认为,点G波是蚜虫在刺探途径阶段(C波阶段)的试探性主动吸食过程;
A novel control method is proposed in this paper, namely six-phase motor trapezoidal wave phase current control.
针对多相电机控制模式复杂性的特点,本文提出一种新颖的控制方式:六相感应电机梯形波相电流控制。
Sometimes, owing to the limitation of specimens or testing conditions, etc., the measurement for the exact travel time of a wave phase is very difficult.
有时,由于样品和试验条件等方面的限制,准确测定波动的走时很困难。
Microwave phase shifter is a device that can change the phase of electromagnetic wave. It is widely used in the phase array radar and microwave communications systems.
微波移相器是能改变电磁波相位的器件,广泛应用在相控阵雷达和微波通信系统中。
With the complexity of the control of multiphase machines, a novel control method was proposed in this paper, namely six-phase motor trapezoidal wave phase current control.
针对多相电机控制模式复杂性的特点,提出一种新颖的控制方式:即六相感应电机梯形波相电流控制。
Non coherent demodulation for 2PSK detects relation of carrier wave phase of the interval symbol by the (half period of carrier wave) delay and the adder, then the data is demodulated.
PSK非相干解调法将经延时半个载波周期的接收信号与原接收信号相加,检测出两相邻码元载波相位变化情况,从而解调出数字信息。
Based on the algorithm, the value of transient Reyleigh wave phase velocity is closer to true wave velocity, so the resolving rate and the definition of the phase velocity are improved.
根据以上算法求得的相速度更接近瑞利波真速度,从而提高了相速度的分辨率和精确度。
From chapter three to chapter five, the three key components of the system: millimeter-wave phase locked sources, multiple frequency local source, low noise amplifier are designed and tested.
第三章至第五章分别介绍了毫米波锁相源、二倍频本振源和低噪声放大器三个系统关键的单元电路的设计过程和测试结果。
Phase shifter is a commonly-used component in microwave system. Its function is to make the passed electromagnetic wave phase shift, so it's very useful on the phase control and power synthesis area.
相移器是微波系统中的常用元件,它的作用是使通过的电磁波产生一定的相位移,因此它在微波相位控制和功率合成方面具有重要意义。
Should GEO600 detect a phase change, it could be indicative of a slight change in distance, thus the passage of a gravitational wave.
如果GEO600探测到位移,那就说明发生了距离的微变,而这很可能是重力波的通过引起的。
The frail elderly, who account for 90% of severe and fatal cases during seasonal flu, will be largely spared, at least during the early phase of the second wave.
占季节性流感严重和致命病例90%体弱多病的老年人,大部分会在第二波前期能够得到病毒的宽恕。
"One of the ways that we encode digital information is by its phase," Huntington said, "so what we've done is created a wave packet that's simultaneously a one and a zero in its phase."
“一种解密数码信息的方法是通过位相”,亨廷顿说,“于是我们生成了一个波包,它的位相同时处于0和1状态。”
The oscillatory phase of the electromagnetic wave doesn't even advance such as in a vacuum — this is what we term a zero-phase delay.
电磁波的震荡甚至不像在真空中那样前进了。这就是我们称之为零相位表现。
Unlike an ocean wave, a wavefront or surface of constant phase is unobservable and undetectable.
和海浪不同,波阵面或固定相平面是不能观测和不能发现的。
In this paper, the phase conjugate nature of the nonlinear coupling forward wave has been demonstrated.
本文论证了非线性耦合前向波的位相复共轭特性。
And the phase velocity of fast wave will decrease exponentially with frequency.
快纵波的相速度随频率的增大以指数形式减小。
Practice proves, the wave rectifier and three-phase regulated dc quite, the coating structure little impact, and other waveform is big effect.
实践证明﹐三相全波整流和稳压直流相当﹐对镀层组织几乎没有什么影响﹐而其它波形则影响较大。
The air-sea interaction has certain effect on slowing down the phase speed of the wave.
海-气相互作用在减慢激发波的移速方面也有一定作用。
Analyse principle of operation, technology feature of single-phase alternating current induced liquid metal electromagnetic pump wave soldering machine.
重点分析单相交流感应式液态金属电磁泵波峰焊接设备技术的工作原理、技术特征;
During the second recording, a phase plate is used to produce a half wave delay of the reference image.
在第二次的记录过程中,利用位相板使参考图像产生半波位相延迟。
The reflection phase property and surface wave dispersion are analyzed using finite element method.
用有限元方法分析了其反射相位特性及表面波传输特性。
Phase is a kind of important wave parameter of periodical signal.
相位是周期信号的一种重要的波形参数。
The diffraction characteristics of the phase mask for UV-written fiber grating is investigated using rigorous coupled-wave theory.
本文利用严格耦合波理论对用于光纤光栅制作的相位掩模的衍射特性进行了深入的研究。
A diffraction selectivity theoretical analysis method of volume gratings with wave front phase encoding is proposed.
论文给出了分析随机波前相位编码体光栅选择性衍射的一种方法。
The existence of various lacunas in bolt bonding system will cause the acoustic wave energy attenuation, phase aberration and frequency dispersion.
由于锚固体系中有不同大小和程度的缺陷,声波在传播过程中将产生能量衰减、相位突变及频散现象。
Provided that the phase propagates downward, the wave transports energy and westerly momentum upward.
在波动位相下传的情况下,波动向上输送能量和西风角动量。
Vector analysis and shock wave theory are applied to the initial phase during which the contact periphery expands more quickly than the compression wave fronts in the droplet.
对于第一阶段运用矢量分析和激波理论关系,建立了适用于高速撞击条件的非线性激波模型。
This paper describes the virtual experiment of single phase half wave controlled rectifier with different load.
本文设计了单相半波可控整流电路,在带不同负载情况下的虚拟实验。
The fundamental concepts of phase conjugate optics are described. Various nonlinear optical techniques which generate phase conjugate wave are summarized and the relations between them are discussed.
本文介绍了相位共轭光学的基本概念,综述了产生相位共轭波的各种非线性光学技术,并讨论了它们之间的关系。
The fundamental concepts of phase conjugate optics are described. Various nonlinear optical techniques which generate phase conjugate wave are summarized and the relations between them are discussed.
本文介绍了相位共轭光学的基本概念,综述了产生相位共轭波的各种非线性光学技术,并讨论了它们之间的关系。
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