It is mainly made of reinforced PP with short time of self-priming and long life, a kind of zero-leakage pump for automation long distance control and fluid transmission of strongly corrosive liquid. 该泵以增强聚丙烯为主要材料,自吸时间短、寿命长,是自动化远程控制和流动输送强腐蚀液体的无泄漏泵。
New method of calculating short circuit long distance EHV AC transmission lines 计算超高压长距离交流输电线短路故障的新方法
Technical Requirements for Short Distance Optical Cable Transmission System of TV Program 电视节目短程光缆传输系统技术要求
It mixes the solar energy power supply technology, the short distance wireless communication technology and the GPRS long-distance transmission technology together, which can make the scene administrative personnel promptly understand each oil well the production condition in the far-end. 它将太阳能供电技术、短距离无线通讯技术和GPRS远距离传输技术融合在一起,实现了重要生产数据采集、处理、远传。
Simulation of High-voltage Short Distance Ring Power Transmission Line Based on Matlab 基于Matlab的高压短环形电力传输线的仿真
The results indicate that the NRZ ( non return-to-zero) format with compact modulation bandwidth and simple configuration seems to be desirable in the high bit rate and short/ medium distance optical fiber transmission. 比较分析表明,由于频谱结构紧凑和实施简单,非归零码(NRZ)在中短距离高速传输系统中有很好的应用;
DWDM system can be utilized in construction of long-haul transmission network as well as short distance transmission network such as MAN ( Metropolitan Area Network). DWDM系统既适合于构架长距离的传输网络,也可用作诸如城域网(MANMetropolitanAreaNetwork)等短距离传输网络的首选方案。
Application of the power frequency variation principle in single source and short distance transmission line 工频变化量原理在单电源系统中的应用
For the problem of short wired transmission distance and great transmission loss of broadband satellite communication RF signal transmitted on ground and ship, this paper proposes the solution and method, which make use of linear optical fiber technology. 针对卫星通信宽带射频信号地面和舰船上有线传输距离短、传输损耗大的问题,提出了利用线性光纤技术传输卫星通信宽带射频信号的解决途径和方法。
Plastic optical fiber can be taken as short distance transmission system medium for replacing of coaxial cable because of its many excellent characteristics. 由于塑料光纤有诸多优点,可以替代同轴电缆作为短距离通信网的传输介质。
Most common video surveillance system is a multi-point monitoring system, which makes the setting up of the system more expensive; furthermore, because of the short transmission distance and poor signal stability, such systems is difficult to apply to the medium distance video transmission. 常见的视频监控系统大多属于多点监控系统,这就使系统的组建要耗费大量线材和人力;此外由于传输距离短、信号稳定性差等诸多缺点,这类系统难以实现中距离视频传输。
In the present, the two most commonly used corona loss test methods are corona cage and test line of short distance, and we can estimate the loss index of actual transmission line with the results by the two methods. 电晕笼和架设短距离试验线段是现今两种最为常用的电晕损失测量手段,用这两种试验方式所得到的结果来估算实际输电线路的损失指标。
Because of its short wavelength, high photon energy, long transmission distance in the water and sensitivity to the eyes, laser with this wavelength has important application in display and transmission of information. 由于该波段的激光具有波长短、光子能量高、在水中传输距离远和人眼敏感等优点,在显示、信息传输等领域具有重要应用。
As the system data transmission with the mode of sensor test data in a short distance, multi-node, self-organizing wireless network, it could use the USB interface gateway to connect the WSN and internet to implement the data transmission with internet. 在实现传感器检测数据短距离、多节点、自组织网络无线传输的同时,使用USB接口网关将WSN与internet互联,实现与互联网监测系统的数据传输。
Advanced technology of wireless and short distance transmission is applied on pulse signal test system, which makes the transmission of numerous of data from wire into wireless as well as real-time and portable. 课题的研究将先进的无线、近距离传输技术应用于动态监护中,使脉搏数据的传输由有线变为无线、实时、可移动。
The TCSC devices not only short the transmission distance by electrical and improve network transmission capability but also through to the adjustment of the controlled system to damped vibration. In the insufficient damping dynamic areas the TCSC have obvious effect. TCSC装置不仅可以通过缩短输电电气距离,提高电网的输电能力,还可以通过对可控部分的调节阻尼系统振荡,对于动态阻尼不足的地区有明显的作用,可以大幅提高高电网稳定水平。
Now common DG types can utilize multiple energy resources, make for environmental protection, and further improve the energy efficiency through combined heat and power mode and combined cooling, heat and power mode because of short distance between distributed generators and consumers and low transmission loss. 目前常见的分布式发电形式能够利用多种能源并且环境友好;同时由于分布式电源靠近用户侧传输损耗小,而且可以采用热电联产、冷热电联供的形式进一步提高能源的利用效率。
Ultra Wide Band ( UWB) technology which is the core technology of short distance and high speed wireless communications has been considered to be one of the most effective methods to realize high speed and reliable data transmission in wireless fading environment. 作为短距离高速无线通信的主流核心技术,超宽带(ultrawideband,UWB)技术被认为是短距离室内无线衰落环境下,实现高速可靠数据传输的最有效方法之一。