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low voltages
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  低电压
     An analysis of 100 cases of obstructive pulmonary emphysema in middle to old aged persons showed that the most commonly occurred electrocardiographic findings were 1) inversion of PavL, 2) low voltages of QRS in limb leads, 3) close resemblance of Ⅱ.
     从临床上已确诊为慢性阻塞性肺气肿的100例心电图中,分析得出最常见的五项表现为:P_(avL)倒置、肢导低电压、Ⅱ. Ⅲ.
短句来源
     Two different pulse amplitudes corresponding to the high and low voltages about the quiescent point were chosen.
     我们选用了对应于静态工作点高、低电压的两个不同的脉冲幅度。
短句来源
     Finally some configurations are discussed, for example 6, 12 and 24 pulse rectifiers with multiple chopper loads, and high current and low voltages DC chopper rectifier systems. Advantages and benefits are given in the chopper rectifier system such as low output ripple, fast dynamic (response,) reduced flicker, high power factor, higher system efficiencies, and reduction in over all (system) volume and cost.
     最后研究了Chopper整流的几种结构,如6脉波整流多输出、12脉波整流多输出、24脉波整流高压输出及大电流低电压输出,并给出Chopper整流系统的优点:输出电流纹波低、动态响应快、电压闪变小、整个功率范围内功率因数高、整个系统电效率高、体积小、成本低.
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     The applications of battery powered analog and analog/digital mixed mode electronic devices require analog circuits operating at low voltages, in order to reduce power consumption of the system.
     以电池供电的模拟或A/D混合电子产品的广泛使用,要求设计出低电压模拟电路,以降低整机的功耗。
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  “low voltages”译为未确定词的双语例句
     The results showed that the electroluminescent devices with low voltages(7 V) were stable .
     电致发光器件具有良好的稳定性 ,其起亮电压为 7V。
短句来源
     Switch/MVX Fault Protection at Low Voltages
     低压开关/多路复用器中的故障保护
短句来源
     The ex-situ Raman spectra of SEI film were studied both before Ag deposited and after that. The tendencies of normal Raman spectra and SERS were similar, the Raman peaks at low voltages were richer than those at high voltages, which accorded with the HRTEM results.
     包银前后SEI 膜的正常拉曼散射和表面增强拉曼散射(Surface Enhanced RamanScattering,简称 SERS)测量结果类似:充放电到低电位的拉曼谱峰比高电位时丰富得多,并且相对强度也较大,说明低电位时 SEI 膜较厚且成分复杂,这一趋势与电镜结果相吻合。
短句来源
     Using the algorithm of subsection modulation, voltage frequency ratio as well as numeration of sine function, real time sampling cycle, voltage amplitude, and pulse width at different frequencies are achieved and the time values are put into the timers of the special event manager EV in TMS320C240. Then through timing interrupt the high low voltages are sent to the interface circuits to generate real time SPWM waves.
     利用分段同步调制法、压频比算法以及对正弦函数值的拟和 ,实时计算不同频率下的采样周期、电压幅值及输出脉宽 ,并将这些时间计数值送入 TMS32 0 C2 4 0事件管理器 EV中的定时器 ,利用定时中断向接口电路送出相应的高低电平 ,实时产生 SPWM波形。
短句来源
     The technical requirements and design of middle and small coal mine substation ,in some vegions high and low voltages switchgear electrical set combination is introduced.
     介绍一些地方中小煤矿变电所高、低压电器设备的技术要求及设计。
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  相似匹配句对
     Low and N.
     Low和N .
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     A New Injector Used at Low Voltages
     一种新的低压电子注入器
短句来源
     Lightning Over-voltages in Low-voltage Systems
     低压系统的雷电过电压
短句来源
     Low power.
     低功耗的问题。
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  low voltages
The advantages of EB curing, together with equipment design and capabilities at these low voltages, will be presented.
      
The FE-SEM could analyze small particles (below 50 nm) embedded in the steel, but the analysis had to be carried out at low voltages to maximize spatial resolution, resulting in a poor signal.
      
Using modern in-lens backscatter electron detection operating at low voltages, high contrast images can be obtained of the metal catalyst on these model oxide supports.
      
Addition of GTPγS to the bilayer fused with vesicle membrane appeared to suppress this channel activity at low voltages yet induced a hyperactive state at holding potentials of 45 mV or greater.
      
A circuit and the structural features of apparatus for the synchronous recording of the electrical and optical characteristics of spark discharges, which occur between two electrodes at low voltages, are described.
      
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In contrast to many other particles π- mesons at their stop-point effectively produce stars with large energy release. This phenomena has been used by us for selected detecting of π-mesons. The star-detector for π-mesons represents a simple telescope of two scintillation counters set in coincidence. The first counter is an ordinary counter with 100% efficiency for passing particles. The second counter of the star-detector works at a comparatively low voltage supply. Hence it detects the large light impulses...

In contrast to many other particles π- mesons at their stop-point effectively produce stars with large energy release. This phenomena has been used by us for selected detecting of π-mesons. The star-detector for π-mesons represents a simple telescope of two scintillation counters set in coincidence. The first counter is an ordinary counter with 100% efficiency for passing particles. The second counter of the star-detector works at a comparatively low voltage supply. Hence it detects the large light impulses only, produced in the scintillator as the result of π - stars. Its efficiency for the detecting of passing particles is very low. The photomultiplier of the second counter works as a spectrometric one with highly stabilized voltage supply. Using this detector one may quickly (in 15 minutes, the π-beam intensity being 103 per sec) measure the range and energy of π- mesons.

负π介子和许多其他粒子不同,它们在介质中停止处有效地产生星裂,从而释放出大量的能量。我们利用了这种现象来选择性地探测负π介子。 星裂探测器是个计数管望远镜。它由二个符合闪烁计数管组成。其中第一管是普通的闪烁计数管,它记录透过粒子的效率是100%。第二管的工作电压放得较低,使之只记录负π介子在晶体中引起星裂而生的大的光脉冲;它记录透过粒子的效率极低。第二管用能谱分析性能好的光电倍加管,由高稳定的电源来供应。 用星裂探测器可以迅速测量负π介子的射程和能量。例如对强度为10~3/秒的负π介子束,测量能量只需15分钟。 这种探测器记录粒子时有选择性。它只记录星裂,而不记录其他停止的带电粒子(例如负μ介子),实验证明参看图7。我们所用的星裂探测器,对负π介子的灵敏度,比对负μ介子的灵敏度至少要大20倍。

1) In this article a description of mathematical analysis of initial distribution of Voltageand surge transter in the 3-winding antotransformer (method superposition) is given. 2) The effect of the states of Lower voltage winding on the surge phenomena in thehigher and central voltage windings is given. 3) If the Lower voltage winding is eonnecred in parallel to a R-C circuit, the potentialof the winding to earth (when atmospheric and switchng surge inpinged on the winding) isdecreased. 4)...

1) In this article a description of mathematical analysis of initial distribution of Voltageand surge transter in the 3-winding antotransformer (method superposition) is given. 2) The effect of the states of Lower voltage winding on the surge phenomena in thehigher and central voltage windings is given. 3) If the Lower voltage winding is eonnecred in parallel to a R-C circuit, the potentialof the winding to earth (when atmospheric and switchng surge inpinged on the winding) isdecreased. 4) The study of the effect of the high-frequency damped oscillation, which superposed onthe IR drop of an arrester, on the surge phenomena in 3-winding autotransformer. 5) The gradient voltage in the autotransformer is contfolled ty the Law of Freed(U. S. S. R.)

本文中给出高压教研组在电磁模拟上进行波过程研究的一些结果: 1)可以根据文献〔4,5〕及叠加法求得三绕组,高压进线位于绕组中部的自耦变压器中的起始电压分布及电容分量的过渡。2)研究了低压绕组的几种状态对高、中压绕组内波过程的影响。3)可利用与低压侧并联的R-C回路来减少开断空载变压器的过电压及大气过电压作用时绕组的对地电位。4)研究了PB动作后所产生的高频振荡对波过程的影响。5)梯度电压遵从弗里得理论。

Removal of the cerebral hemispheres or transection behind them does not interfere with the motor activities of the toad. Even after transection of the brain between the optic cbiasma and the pituitary body, the toad shows no other abnormalities than the retardation of the righting reflexes. The electroencephalograms of these toads do not differ very much from the normals, which show mainly lower voltage and faster rate (12—32 c.p.s.) superimposed on higher voltage and slower rate (7—9 c.p.s.) waves....

Removal of the cerebral hemispheres or transection behind them does not interfere with the motor activities of the toad. Even after transection of the brain between the optic cbiasma and the pituitary body, the toad shows no other abnormalities than the retardation of the righting reflexes. The electroencephalograms of these toads do not differ very much from the normals, which show mainly lower voltage and faster rate (12—32 c.p.s.) superimposed on higher voltage and slower rate (7—9 c.p.s.) waves. Forced abduction of the jaws produces inhibition of the brain waves as described previously. After transection of the brain at the level of obex, the toad shows immediately an exaggeration of the embracing reflex and a disappearance of the righting reflex. The electroencephalogram also changes immediately to a new pattern with waves of moderately fast rate (12—20 c.p.s.) and still higher amplitude. Surgical removal of the lower jaw can also produce considerable inhibition of the brain waves, as much as does the forced opening of the jaws. But when the medulla is totally destroyed, all the brain waves disappear. By the destruction of the upper spinal cord, the toad is entirely paralyzed except the preservation of the flexor reflex of the hind limbs. The electroencephalogram of such a toad is somewhat depressed, due probably to reduction of afferent impulses. On the basis of the above observations the conclusion is drawn that the process of the inhibition of the brain waves and of the motor activities in toads resulting from forcing the mouth open or from the removal of the lower jaw, is to be localized somewhere in the medulla.

根据中枢神經系統不同部位的破坏对于蟾蜍运动和脑电图的影响,可以看出来机械地支开口腔或剪去下頜都能使蟾蜍的延髓发生抑制过程。

 
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