查询词典 wave system

It avoids the parallelogrammical output machine with a complicated planetary wheel system and the flexible wheel of resonance wave transmission, shortens the movement chain observably and reduces the loss of movement transfer.

偏心轮推杆行星传动属于活齿少齿差传动，它的推杆结构成功地解决了输入轴与输出轴同轴的问题，避免了复杂行星轮系的平行四边形输出机构和谐波传动的柔轮，显著缩短了运动链、减少了运动传递的损失。

After transmission over single-mode fiber 20 km, the power penality is less than 2 dB.

标 签 光通信光纤无线通信系统外部调制器光载毫米波光载波抑制下行链路 optical communications radio over fiber system external modulator optical millimeter wave optical carrier suppression downstreem

ATbstract: he small frequency modulated transmitter, the power is small, may launch the wireless signal, accepts the signal with the radio, satisfies certain transmission range, Circuit easy system, low cost, power output does not exceed 5-8 mW, firing range to be in the housing area of about 100 meters, with an ordinary FM radio receivers, demonstrating his superb sensitivity and clarity, the most circuit design challenges of the part is only used 3 V power supply, and half-wave antenna will be such a launch capability.simultaneously can input the sound signal, may install modulation surveillance table to serve as the monitoring device, although the power is not very big, but should the interference protection normal radiobroadcasting signal.

小型调频发射机，功率小，可以发射无线信号，用收音机接受信号，满足一定的发射距离。电路简单易制，造价低廉，输出功率不超过5－8mW，发射范围在房屋区可至100米左右，用一部普通的FM收音机接收，显示其灵敏度和清晰度俱佳，电路设计中最富挑战性的部份就是只需用3V电源和半波天线便有如此的发射能力。同时能够输入声音信号，可安装调制监视表头用作监视器，虽然功率不是很大，但是应该防止干扰正常的无线广播信号。

By a voltage-traced SPWM technology, the sine pulse width modulation wave was derived and the project of voltage output was designed. Resultantly, the microcontroller was fully used in the variable-frequency power system.

讨论了系统的硬件、软件设计和正弦脉宽调制波的生成和输出稳压方案的设计，采用了实时电压跟踪SPWM技术，使单片机在变频电源系统中得到了有效的应用。

The findings: with the apparent dominant frequency of the Ricker wavelet rising, the detection SNR will get worse gradually, it is obvious that the variety of the SNR is slower during the portion of high frequency than during the portion of low frequency; in the usual range of seismic prospecting frequency, the SNR of the chaotic oscillator detection system could partially make up the amplitude attenuation aroused by the transmit of the seismic wave; the results could provide help for detecting the event constituted by aberrant wavelets.

本文以Ricker子波模拟地震子波，研究Ricker子波视主频变化的相应检测效果。研究结果：随着Ricker子波视主频的升高，检测SNR逐渐变差，在高频部分SNR的变化明显比低频部分缓慢；在通常地震勘探频率范围内，混沌振子系统检测SNR有可能部分补偿由于地震波传播引起的幅度降低；为检测由畸变子波构成的同相轴提供一定的可能。

The spectrum is achieved from the locale vibration signal applying Local Wave Method, on which the state-feature table of the system is established. Then the feature group with the maximum of fault information is worked out, the fuzzy tree is established sequently.

对往复压缩机振动信号进行局域波时频处理，得到包含故障状态值的局域波时频谱，结合系统工况资料建立系统故障状态一特征表，找出最大故障信息量的特征群，建成故障信息量的模糊二元树。

Besides it has stressed the superiority that based on the developing platform of LabVIEW, the major function of bogie dynamic strain testing data processing system, the means of which to make handling zero drift, removing singular point, handling unregular points and handling filter wave come true.

并着重说明了以LabVIEW为开发平台的优越性，及转向架动应变测试数据处理系统的主要功能，及零漂处理、单点修正、异常点处理和滤波处理的实现方法与手段。

The establishment of more than 10 years, met with many world-renowned manufacturers with the industry has established close cooperation and technological exchanges and relations, the main products are: the United States and Tellabs production company Focus series SDH synchronous transmission systems and optical wave-division multiplexing Use optical transmission systems, France SEGAM the FMX series of PCM products in the domestic exclusive Newbridge Networks of Canada to introduce production technology and production lines produced by the PCM MainStreet 3630 Intelligent Terminal; Canada to introduce advanced SCADA system on its own Development of a national advanced level of 9700,9800 series of intelligent digital access equipment.

成立10多年来，先后与许多国际知名同行业厂商建立了密切的技术交流与合作关系，主要产品有：与美国Tellabs公司合作生产的Focus系列SDH光同步传输系统及密集波分复用光传输系统、法国SEGAM的FMX系列PCM产品；在国内独家引进加拿大新桥网络公司生产技术和生产线所生产的 MainStreet 3630智能化PCM 终端；引进加拿大先进的SCADA系统；自行研制的具有国内先进水平的9700、9800系列数字智能接入设备。

The system''s antenna emits a focused beam of millimeter wave energy.

该系统的天线发射出能量为毫米波的聚焦射束。

TCQ-ZD-400 active infrared long distance target detector realizes its function of identification, photography, and image storage of target by eradiating a special electromagnetic wave, detecting target with the help of the characteristic of reverberation and the active infrared imaging system.

工艺技术简介： TCQ－ZD－400型主动红外远程目标探测器是通过发射一种特定形式的电磁波，并借助电磁波的反射特性来探测目标，在探测到目标的同时通过主动红外夜视成像系统，实现对目标的识别、拍摄和图像存储等。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。