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- The coefficient of variation (CV) of slow wave frequency and abnormal rhythm index (ARI) increased obviously. 慢波频率变异系数(CV)及异常节律指数(ARI)显著增加;
- The radiation wave frequency of semiconductor laser is shifted correspondently when the injecting current is changed. 半导体异质结激光器在注入的电流发生变化时，输出激光的光频也随之改变。
- The researchers may through expose the waterdrop under the different sound wave frequency may control its vibrational frequency. 研究人员可通过将水滴暴露于不同的声波频率下可以控制其振动频率。
- The relation between collisional absorption of the EM-wave and the plasma density, plasma collision frequency, and incident wave frequency is obtained. 给出了不均匀非磁化等离子体密度、等离子体碰撞频率、电磁波频率与碰撞吸收的关系。
- Miniature passive hydrogen maser is developed at Shanghai Observatory which employs compact cavity design and square wave frequency modulation. 介绍了上海天文台被动型小氢钟的设计和研制,给出了初步的测试结果。
- AD9851 driver can generate the sine wave frequency controllable. At the same time can serve as a reference, study and AD9852, AD9854 use! AD9851的驱动程序，可以生成频率可控的正弦波。同时可以作为参照，学习AD9852,AD9854的使用！
- On the basis of the introduction of STEL-1479 and PIC16C73A,The middle wave frequency synthesizer which is based on DDS and controlled by single chip is designed. 在介绍DDS芯片STEL-1479和PIC16C73A单片机的基础上,设计了一种利用单片机控制DDS芯片实现的中波频率合成器。
- The computation methods of electromagnetism parameters, electromagnetic wave frequency and medium slice thickness in microwave measuring for composite material were analyzed. 摘要分析了复合材料微波检测中电磁参量、电磁波频率和介质薄片厚度的计算方法。
- The effects induced by the EM wave frequency and bandwidth on the pulse broadening velocity is studied and the simulated results are given in the mm band. 在毫米波段仿真计算了频率与带宽对脉冲波展宽速率的影响。
- This paper describes the basic principle and main performance of the SWFM-IM(square wave frequency modulation-intensity modulation) optical fiber transmission system with two accompanying sound channels for colour TV programs. 本文叙述SWFM-IM彩色电视双伴音光纤传输系统的基本原理和主要性能。
- This paper introduces the structure and basic principles of ultrashort wave frequency hopping station system,analyzes on the TOD and three kinds of frequency-hopping synchronizations,and advances a scheme of deferred-network-entry synchronizationt. 介绍了超短波跳频电台系统结构及基本原理,分析了时间信息(TOD)与3种跳频同步分类,提出了一种迟入网同步方案。
- But to the CW pulse signal with changing carrier wave frequency, common filter cannot achieve narrowband filter, whereas broadband filter cannot reach the request of the signal-noise ratio. 可是,对于载波频率不断变化的CW脉冲信号,普通的滤波器难以实现窄带跟踪滤波,而宽带滤波又不能达到提高信噪比的要求。
- Bandwidth: The difference (in hertz) between the upper and lower limits of wave frequencies transmitted over a communications channel. 波段阔度:在一个通信通道中，最高和最低波频率（单位是赫兹）的差别。
- Bandwidth The difference (in hertz) between the upper and lower limits of wave frequencies transmitted over a communications channel. See Brodband, Narrowband, Wideband. 波段阔度在一个通信通道中,最高和最低波频率(单位是赫兹)的差别。参阅阔波段,窄波段和宽波段。
- Bill wave his hand to us and then drive away. 比尔向我们挥手告别后开车走了。
- Radio2 can be heard on the long wave band. 第二广播电台可在长波段收听到。
- I am able to pick you up on the short wave radio. 我能用短波收音机收听到你的信号。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A wave broke across the surface of the pool. 一个波浪从池水表面掠过。
- I was able to pick you up on the short wave radio. 我能用短波收音机收听到你的信号。
