查询词典 feedback amplifier

Newsflashes and feedback - to communicate announcements and capture feedback.

快迅和反馈-沟通，通知和捕获的反馈意见。

The method adopts a ranking method based on vector space model to rank KSORD results. Based on the results of user feedback or pseudo feedback, it computes expansion terms based on probability and reformulates the new query using query expansion.

该方法选用基于向量空间模型的打分机制对KSORD结果打分，根据用户反馈或伪反馈的结果信息，采用基于概率的方法计算扩展用的语词，以查询扩展的方法自动重构查询进行再次检索。

However,since there exists a semantic gap between lowlevel features and high level semantic concepts in CBIR, typical relevance feedback techniques need to perform mutiple iterations of feedback for achieving satisfactory results. These procedures are timeconsuming and may make the users bored in the retrieval tasks.

然而，在图像检索中，高层语义与底层特征之间存在着巨大的&语义鸿沟&，传统的相关反馈技术需要多次反馈才能获得满意结果，这使得用户的检索任务既耗时且繁琐。

The system is composed of MCU, A/D converter, D/A converter and power amplifier.

系统由单片机、 A/D 转换器、 D/A 转换器和功率放大器组成。

For signal conditioning or data aquisition we recommend our broad range of amplifier and A/D converter.

信号调节或数据采集，我们建议我们的放大器和A / D转换器广泛。

The formation mechanism of the absolute instability and gyrotron backward wave oscillations is analyzed, and the methods to suppress the parasitical modes are discussed.The nonlinear theory model of gyro-TWT is consummated by considering the influence of tapered magnetic field and waveguide radius, electron velocity spread, and waveguide loss on electron beam-wave interaction. The large-signal characteristic of gyro-TWT, such as launching loss and absolute instability, are also analyzed in detail. This work establishes the foundation for the development of a gyro-TWT amplifier.

重点研究了两段损耗波导结构和损耗陶瓷结构回旋行波管中的电子注-波互作用，分析了绝对不稳定性和回旋返波振荡的形成机制和抑制寄生模式的方法；完善了回旋行波管的非线性理论模型，并考虑了磁场和波导半径渐变、速度零散、波导损耗等因素对注-波互作用的影响；详细分析了发射损耗、相位稳定性等回旋行波管的大信号特征，为回旋行波管放大器的研制奠定了基础。

This paper, with the analysis of the propagation characteristics in a lossy cylindrical waveguide and using small-signal theoretical dispersion relation, presents study on the device stability with influence of the absolute instability and the backward wave oscillation in TE01-mode lossy dielectric-load gyrotron traveling wave amplifier.

摘要该文从分析损耗介质加载金属圆波导中电磁波传输特性出发，应用回旋行波管放大器小信号色散方程，研究损耗介质加载结构TE01模回旋行波管放大器绝对不稳定性振荡和回旋返波振荡对器件稳定性的影响。

To control the Bragg wavelength, a lock-in amplifier is used, and the output wavelength is locked at the C2H2 absorption line of 1530.37 nm.

利用锁定放大器闭环控制布拉格波长，将激光器的输出波长锁定在乙炔气体1530.37nm的吸收峰上，24h内频率稳定度达10^-8。

It also has a power supply for the amplifiers and it may have an accelerometer amplifier as an option.

它也有放大器的电源，并且它也许有过载信号器放大器作为选择。

In experiments, pressure ratio and acoustic power have been enhanced by increasing heating power and the length of acoustic pressure amplifier.

在实验研究中，通过增加声压放大器长度和加热功率，提高压比和声功。

Yet, Edith says, there was always money in the bank.

但是Edith说，她的银行户口里面总是有钱。

We have created a series of files that resolve this problem--one for each day of the 40 days of purpose.

我们制作一系列的档案去解决这问题---一个为标竿40天中的每一天。