- 更多网络例句与等幅波相关的网络例句 [注:此内容来源于网络,仅供参考]
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Then the FLUENT software was used to simulate the amphibious vehicle' ambient flow field through defining the unsteady boundary condition. The lift, resistance, velocity, pressure, and wave of the amphibious vehicle moving in the regular waves were obtained, which can avoid the errors resulted from neglecting the free surface and provides theoretic basis for the research on optimization design of high performance amphibious vehicle.
在计算出某改进型两栖车在微幅规则波中高速迎浪运动时升沉和纵摇特性的基础上,运用FLUENT软件,通过自定义非定常入口边界实现了两栖车在微幅规则波中运动的三维流场数值模拟,得到了升力、阻力、速度、压强和兴波等流场参数,实现了两栖车在波浪中的绕流场数值模拟,解决了以往由于忽略兴波特性导致数值计算结果随航速提高误差不断增大的问题,为高性能两栖车的外形设计研究提供了理论依据。
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After all, the Capodimonte is filled with masterpieces from the world famous Farnese Collection, some 800 paintings by such artists as Titian, Raphael, Masaccio and Mantegna.
毕竟, 卡波迪蒙特珍藏着世界著名的法尔内塞家族的藏品, 800多幅名画,出自提香,拉斐尔,马萨乔和曼特那等大师之手。
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A set of complex Morlet wavelet are applied on projection slice of each direction to decompose each projection into several frequency channels,the average and variance extracted are computed in each frequency channel,and then linear regression model is employed to computer realationship feature between frequency channels.1-D DFT is applied to features and the amplitudes of Fourier coefficient are selected as features,then the extracted features are rotation invariant.
该算法是将一定大小的图像进行二维傅里叶变换;其次在变换后的图像中央选择一个圆盘区域,并在方向[0°,180°]内进行等间隔角度频率抽样,实现方向分解,使用一组复Morlet小波对每个方向上的映射切片进行小波变换,从而实现多通道频率分解;在各个频率通道中计算均值和方差作为特征,并利用线性回归模型计算频率通道之间的关系特征;将特征沿方向进行一维傅里叶变换并取其幅值,从而得到旋转不变性特征。
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An optimal filter is designed specially for dq transform used in the voltage mea-surement of transfer switch,which is composed of lower-order notch filter and lower-order low pass filter with higher cut-off frequency in series.Its transfer function is presented by theoretical derivation.If the order is same,it is better in measuring the positive sequence of fundamental amplitude than the average filter and the low-pass filter.
针对转换开关电压检测法——dq变换设计了优化滤波器,该滤波器是利用低阶陷波滤波器和较高截止频率低阶低通滤波器串联形成的,通过理论推导给出了该滤波器的传递函数,在相同的滤波阶数下,该优化数字滤波器在提取基波正序幅值的性能比较中,优于平均值滤波法及低通数字滤波器法等。
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Aircraft navigation system, one or more ground navigation station with the provisions of the frequency of launching radio beacon signals (such as wave, audio wave modulation or code), aircraft flight navigation equipment according to the received beacon signal measured or calculated aircraft Solutions relative to the navigation ...
飞机导航系统中,一个或几个地面导航台用规定的频率发射无线电信标信号(等幅波、音频调制波或代码),飞机机上导航设备根据收到的信标信号测出或解算出飞机相对于导航。。。
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Aircraft navigation system, one or more ground navigation station with the provisions of the frequency of launching radio beacon signal (amplitude wave, audio wave modulation or code), aircraft flight navigation equipment according to the received beacon signal measured or calculated aircraft Solutions relative to the navigation ...
飞机导航系统中,一个或几个地面导航台用规定的频率发射无线电信标信号(等幅波、音频调制波或代码),飞机机上导航设备根据收到的信标信号测出或解算出飞机相对于导航。。。
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The main peaks of the EEG power spectra were in delta and theta frequency range. In the stage of ethanol exposure, the rats exhibited much more act of attack than the control, the alpha waves of EEG decreased, while the delta waves increased. The EEG power spectra analysis showed the delta power increased and the theta power decreased. In the stage of ethanol withdrawal, the rats showed some withdrawal behaviors such as wet dog shakes, sniffing, groomingand tonic-clonic seizures for audiogenic stimulus. Spikes and spike-slow waves were found in the EEG. In power spectra analysis, the delta power decreased while the alpha and the theta power increased, the EEG frequency band moved to the high-frequency rang. These changes were found obviously on the sixth day and disappeared on the 1 Oth day after the ethanol was removed.
本研究发现:1、对照组大鼠行为无异常,伏核EEG以α节律为主,散在出现δ和θ节律;功率主峰在δ和θ频段范围,整个过程中未发现手术对伏核EEG及脑电功率谱有影响。2、在慢性饮酒过程中,大鼠攻击性行为增加,伏核 EEG的α节律明显减少,散在出现的高幅慢活动δ波逐渐增多,功率谱分析表明δ频段功率百分比明显增加,而θ频段功率百分比明显减少,总功率减少。3、停饮后,大鼠出现湿狗样抖动、打喷嚏等撤药综合症,并且高频声音刺激能引发惊厥;伏核EEG出现棘波和棘慢综合波,并持续增多,功率谱分析显示δ频段功率百分比 5 南京医科大学硕士学位论文逐渐减少,而0和以频段功率百分比逐渐增加,总功率增加。
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It shows that it is possible to increase the start oscillation length by tailoring magnetic field's amplitude and its period without changing the synchronous condition of the fundamental wave;in the meantime, when there are two or more azimuthally asymmetric space harmonics in the high power broad-band helix TWT, the influences of the Pierce's gain parameter, space charge parameter, and loss parameter on the start oscillation length and real starting asynchronous velocity parameter are also analyzed.
研究结果表明:改变聚焦磁场的幅值或周期来增加起振长度是可能的,而且不会改变基波的互作用条件。与此同时,对起振长度、初始非同步速度参量随皮尔斯增益参量、空间电荷参量、损耗参量等的变化,以及在超宽带行波管中当存在两个或多个角向非对称空间谐波时,起振长度、初始非同步速度参量随周期永久聚焦磁场的变化进行了研究。
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Basic quantities in stellar photographic photometry (in particular, colour index and "effective wavelength") are formulated according to the assumptions that: 1 stellar radiation may be represented by some black body equivalent and 2 within the limits of a single photometric "receiver", intensity-wavelength relationship of the radiation may be taken as linear.
本文對着當前的發展,綜述了照相方法在恆星光度学中的地位。接着用兩個簡單的假设,即星体幅射的黑體近似和累積亮度範圍中的直线近似,把恆星光度学中的基本定義(如有效波長、等光波長和色指数等)和主要问题(如空間红化,亮度效应等)表以公式。
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Besides,it also owns the protective measures of overload, over-heat, the output shortcircuit,the DCcircuit,switchon/offspeaker protection.UM series is very suit for the flowing performance, meeting room,super karaoke and so on.
功放保护电路非常齐全,拥有过栽、过热、输出断路、直流、开关机扬声器保护等完善的保护措施;内置削波限幅电路,减少失真,保护扬声器, UM系列非常适用于流动演出,会议室,适合在超级卡拉OK等场合使用
- 更多网络解释与等幅波相关的网络解释 [注:此内容来源于网络,仅供参考]
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continuous wave:等幅波
它采用等幅波(continuous wave)传输的. 故称等幅电波,缩写为cw,在业余电台通信联络中,通称为cw方式. cw电波调制和传播的方式属于国际电信条约规定的aia电波. 在全世界业余的通信联络中,cw通信有着其他通信方式不可比拟的优越性,
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continuous wave:连续波、等幅波
continuous 连续的 | continuous wave 连续波、等幅波 | contrast 对比度、反差
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continuous wave telegraph:等幅波电报
等幅波接收 continuous wave reception | 等幅波电报 continuous wave telegraph | 等幅波发送 continuous wave transmission
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continuous wave radar:等幅波雷达
"continuous wave generator","连续波发生器" | "continuous wave radar","等幅波雷达" | "continuous wave reception","等幅波接收"
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undamped wave:无阻尼波,等幅波
70 电力信号传送脐索 umbilical cable | 71 无阻尼波,等幅波 undamped wave | 72 悬吊平衡舵 underhung balanced rudder
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continuous wave telegraphy:等幅波电报, 连续波电报
continuous wave signal generator || 等幅波信号发生器 | continuous wave telegraphy || 等幅波电报, 连续波电报 | continuous wave transmission || 等幅波传送
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continuous wave telegraphy:等幅波电报
continuous wave signal generator ==> 等幅波信号发生器 | continuous wave telegraphy ==> 等幅波电报 | continuous wave transmitter ==> 等幅波发射机
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continuous waves:等幅波
continuous wave 连续波 | continuous waves 等幅波 | continuous weld 连续焊缝
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interrupted continuous waves:间断等幅波
interrupted continuous wave 断续等幅波 | interrupted continuous waves 间断等幅波 | interrupted earth 断续接地
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unmodulated keyed continuous waves:键控等幅波
unmodulated continuous wave emission 未调制连续波发射 | unmodulated keyed continuous waves 键控等幅波 | unmodulated 未调制的