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-information
相关语句
  18信息
     Discussion about Design Idea and Construction Scheme for Closed Station in Automatic Blocking Section with 18-information Code and Train Running in Reverse Direction
     有逆向行车18信息电码化自动闭塞区段封闭车站设计思路和施工方案的探讨
短句来源
     According to the problems existing in test alarm system of 18-information automatic block with audio frequency shift modulated track circuits, an improved scheme is provided, which has been proved efficient.
     针对18信息移频自动闭塞检测报警系统存在的问题,提出改进方案,并经过实践验证,是有效的。
短句来源
     Closed intermediate station in automatic blocking section with 18-information code and train running in reverse direction, and the comparison and selection of the design and construction schemes on the condition that the original locations of the section equipment are kept unchanged are introduced in the article.
     介绍了有逆向行车18信息电码化自动闭塞区段封闭中间站,区间设备原位不动设计与施工的方案比选。
短句来源
     As to the carrier frequency, the spectrum of the 18-information auto-blocking track signal has two peaks, then the carrier frequency is the average of the two peak frequency, to UM-71 jointless signal, it has only one peak then the carrier frequency is the peak frequency.
     18 信息轨道信号频谱具有双峰,双峰频率平均值就是信号的载频,而UM-71 频谱单峰,峰值频率即为信号的载频。
短句来源
     As to the carrier frequency, the spectrum of the 18-information frequency-shift track signal has two peaks, then the carrier frequency is the average of the two peak frequency, to UM-71 jointless track signal, it has only one peak, then the carrier frequency is the peak frequency.
     国产18信息移频轨道信号频谱具有双峰,双峰频率平均值就是信号的载频频率,而UM-71无绝缘轨道信号频谱单峰,峰值频率即为信号的载频频率。
短句来源
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  相似匹配句对
     In [18], X.
     X.
短句来源
     Information
     会展信息
短句来源
     Information
     信息浏览
短句来源
     Interleukin 18.
     白细胞介素18
短句来源
     thymine (C-18);
     胸腺嘧啶(C-18);
短句来源
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In this paper the logical structure of contactless telemechanical system for distributed objects is discussed. A simple method of variable system structure for transmitting and receiving telemechanical information is adopted. The idea is that the information oc-curred in every controlled point (station) and the information of some of those objects,which frequently change their states, are transmitted continually and cyclically, while for other objects their information is transmitted...

In this paper the logical structure of contactless telemechanical system for distributed objects is discussed. A simple method of variable system structure for transmitting and receiving telemechanical information is adopted. The idea is that the information oc-curred in every controlled point (station) and the information of some of those objects,which frequently change their states, are transmitted continually and cyclically, while for other objects their information is transmitted only after any change in their states. Thus,the speed of operation will be increased, and also the error probability of system syn-chronization will be decreased. For the realization of the variable logical system struc-ture, several blocks are used repetitively. For example, two commutators and one sim-ple logical unit are used to construct a simple automatic sequential encoder, and at the same time, the two commutators are used also to operate as a matrix commutator for receiving telesignalling information etc. Therefore the system is comparatively simplified and attains a higher degree of "minimization".

本文研究了无触点集中-分散目标远动系统的逻辑结构.文中提出了采用简单的系统变结构来发送和接收信息的逻辑结构方式.对被控制点及一部分比较重要或变化比较频繁的被控制目标的信息,保留了循环传送,而对大部分变化比较慢的被控制目标则采用目标有变化时才传送信号的方式,这样就提高了系统的平均动作速度,同时也减小系统的失步概率.文中采用环节的复合利用及简化的逻辑单元线路来实现这种系统的逻辑结构.例如用两个分配器和一个简单的逻辑单元“和”线路组成了很简化的选点自动程序编码器,同时这两个分配器又复合利用兼组成目标信号接收矩阵式分配器等,因而可以使得这种系统同时又具有较高的极简化度.

A method based upon simple diffraction theory is described for the calculation of modified paraboloid reflectors to produce from a point source a shaped beam of arbitrary shape in one plane and uniformly narrow in the perpendicular planes. A specific application of the shaped beam antennas is in connection with radar antennas designed for height finding. In this case the antenna must have a sharp elevation beam for obtaining precise elevation information and a rapid elevation scan. The beam must be relatively...

A method based upon simple diffraction theory is described for the calculation of modified paraboloid reflectors to produce from a point source a shaped beam of arbitrary shape in one plane and uniformly narrow in the perpendicular planes. A specific application of the shaped beam antennas is in connection with radar antennas designed for height finding. In this case the antenna must have a sharp elevation beam for obtaining precise elevation information and a rapid elevation scan. The beam must be relatively broad in azimuth in order that the target will be held in the beam long enough to obtain height information. If a fixed minimum of illumination is to be achieved at a given linear distance on both sides of the center line of the azimuth beam, the amplitude pattern must have the so-called "double cosecant" or "beavertail" shape.

本论文讨论如何利用简单衍射理论,计算改良抛物面反射器天线幅射之图型。此反射器可将一无方向性辐射源之能量聚集于任何形状之波束中。此原理可以应用在地面上或船面上寻求飞机高度雷达天线之设计。在此类雷达中,天线之方位图型必须为“双馀割平方”式;其特性为自波束对称轴线起,至其两端,辐射一次路程之功率,与方位角之馀割平方成正比。得此图型之最简易方法为置一狭窄之铅垂金属条于一截形抛物面反射器之中心,金属条之宽度,可改变波束之方向性;其支距,即金属条与反射器之距离,可影响两反射波之位相。故改变金属条之宽度及其支距,可得欲得之图型。 利用衍射及干涉理论,计算金属条及截形抛物面所生之总图型为:在方位面内,幅射强度J_H与水平角θ之关系为: J_H =AA[sin~2(15πsinθ)/(15πsinθ)~2-2(1-cosπ/4)sin(2πsinθ)/2πsinθ(sin(2πsinθ)/2πsinθ-sin(15πsinθ)/15πsinθ)]A为辐射波振幅,A为A之复共轭数。计算之结果与实验之结果,颇为一致。

For the purpose of supplying useful information to manufacturing organizations, and of systematically examining the effects of temperature and time of annealing on the domestically produced low silicon steel electrical sheets, a series of experiments has been performed. The results show that the lowest obtainable values of core loss of samples box-annealed in its own atmosphere are approximately P_(10)=2.3 watt kg, P_(15) = 5.2 watt/kg, 30% lower than the permissible values set in ROCT 802-41 for э1A.

为了提供生产上有用的数据,为了考察国产低矽钢片在不同温度不同时间的条件下退火以后的效果,我们进行了具有相当系统性的关于退火条件的实验。实验结果表明:在较850℃为低的温度退火不同时间或多次退火,可使铁心损失达到同一最低值;在高于950℃的温度退火以后,即令再度在较低温度退火,也不能达此最低值。此最低值约为:P_(10)=2.3瓦特/千克,P_(15)=5.2瓦特/千克,较ГOCT802-41中对Э1A规定的最高值低30%。

 
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