查询词典 communicate by signals

Three jumps at the training speed are considered sufficient preparation for jumps from planes moving at combat speed. At the order "prepare to jump" the static-line swivel ring is attached firmly to the proper place in the fuselage. With everything in readiness, the command "stand by for the jump" is communicated by three successive buzzer signals, each of 1-second duration.

在发出&准备跳伞&的口令后，伞兵们要把固定开伞索上的搭扣牢固地挂在机身内部预定的位置，在一切就位后，三声连续的蜂鸣（每声持续1秒）表示&即刻跳伞&。

They also think it signals that the state is unwilling or unable to protect jurors.

他们也认为这表示国家不愿意或没有能力保护陪审员。

The results showed that the echolocation calls of the leaf-nosed bats were constant frequency-frequency modulation signals with 2-3 harmonics and the second one among these three harmonics was its dominant frequency. The constant frequency components of three harmonics (Mean±SD, n=18 ) were 33.3±0.2 kHz, 66.5±0.3 kHz, and 99.4±0.5 kHz, respectively. In examined FTCs of 72 IC neurons, their Q 10 -dB values ranged from 0.5 to 95.4 (9.2±14.6) and the neurons whose best frequency around the dominant frequency had sharp frequency tuning.

结果发现，大蹄蝠回声定位叫声为恒频-调频(constant frequency-frequency modulated，CF-FM)信号，一般含有2~3个谐波，第二谐波为其主频，CF成分频率(Mean±SD，n=18)依次为：(33.3±0.2)、(66.5±0.3)、(99.4±0.5)kHz；电生理实验共获得72个神经元的频率调谐曲线，Q10-dB值的范围是0.5~95.4(9.2±14.6， n=72)，最佳频率(best frequency，BF)在回声定位主频附近的神经元具有尖锐的频率调谐特性。

The printed UWB antenna is comprised of a planar monopole radiator and the ground plane which are connected to a coaxial cable to launch RF signals. This kind of ground and antenna system is essentially an unbalanced design, where electric currents are distributed on both radiator and ground plane, and then leakage to the outer conductor of the feeding cable. The impedance matching and radiation pattern will be influenced in the low band, which are our focus. Finally, some techniques will be proposed to reduce the cable effect on the antenna performance.

进行超宽频天线量测时，吾人会利用同轴缆线连接到网路分析仪，这时的同轴缆线不只是扮演一个传输讯号的工具而已，由於单极天线的不平衡结构，对低频而言，接地回流电流会泄漏到同轴接地的导体外部，造成同轴缆线也是一个辐射体，影响到天线低频时的阻抗匹配与辐射特性，因此本论文将探讨同轴缆线对於天线一些参数的影响，并研究提出解决的办法。

According to signals obtained in magnetic flux leakage detection of oil pipe wavelet transform method is adopted for signal processing.

为了解决输油管道运营中管道腐蚀问题，需定期对输油管道进行无损检测，采用小波变换的方法处理漏磁信号，分析探讨了漏磁检测的原理，指出采用小波变换中的Mallat算法可以有效地对漏磁信号进行处理，使信号便于储存和分析。

A two-stage self-adapting filter method is proposed for implementing noise decrease in magnetic flux leakage signals.

介绍一种两级自适应滤波算法对漏磁信号进行降噪的实现。

Possible fluorescence enhancement mechanism is also studied. Chapter 3, a novel assay of DNA is proposed based on the measurement of enhanced resonance light-scattering signals resulting from the interaction of nano-CdS-Lcysteine with DNA.

3第三章，用L-半胱氨酸作为修饰剂合成了功能化的CdS量子点，并利用DNA的加入对其共振光散射光谱的影响建立了超灵敏测定DNA的方法。

Physical failures are indicated by loss of line signals.

物理失效是由丢失行信号来表示的。

When illuminated with a broadband optical source at a fixed angle of incidence,linear translation of the grating always lead to a linear shift in the wavelength of the detected signals collected at a fixed angle.

考虑国内外的研究现状和结合现有的技术，西安某所开展了变栅距光栅位移传感器的研究，在样机实验中取得了圆满成功，并开始了从原理样机走向工程样机的研究。

Based on signal from carbon fiber composite defects such as lamination, hole, looseners in ultrasonic testing, this paper performs wavelet packet transform on the ultrasonic signals to extract statistics of approximation coefficients and detail coefficients that contain a great part of signal energy as sample-features.

摘要本文以碳纤维复合材料常见缺陷分层、孔隙、疏松的超声波检测缺陷信号为研究对象，对超声波检测信号进行小波包变换，提取包含信号绝大部分能量的近似系数波形特征及细节系数的统计量作为样本的特征值。

The network space is the typical form of abstract space when it comes to the digital stage.

网络空间是抽象空间数字化阶段的典型形式。

The Notarial System,as the system of judicial certification in our country,is both the constructor and the defender of social credit system,It has its special value and function in the social honesty.

公证制度作为我国司法证明制度，既是社会信用体系的建设者，同时也是社会信用的捍卫者，在诚信中有其特殊的价值和功能。