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Abstract: When the accelerating time of frequency is equal to zero,this paper discusses the gain of inventer-induction motor under the vector controlled and non-vect or c ontrolled.At the same time,this paper discusses it while the time of slope is no t z
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文摘:讨论了频率加速时间为零时，矢量控制和非矢量控制两种情况的通用变频器异步电动机的传递函数，同时也讨论了斜坡给定时间不为零的通用变频器异步电动机传递函数，介绍了滑差限定的方法，为设计含有INV-M的系统提高提供了理论依据. |
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Abstract: When the multi-phase exciting generator operating in excitation system is at fault, the stability and reliability can be improved by changing the excitation type.
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文摘:多相励磁发电系统在励磁系统发生故障时，可以通过励磁方式的切换，来提高系统的运行稳定性和可靠性。 |
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Abstract: When we remake the technology of saving energy in the pump station, we may have these ways: the economic and reliable ways of joining the lines, the efficient distribution lines and the higher power numbers.
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文摘:在进行泵站节能技术改造时，实施节能的主要途径有：经济可靠的接线方式、高效运行的配电线路以及较高的功率因数等。 |
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Abstract: While we were analyzing the proposed theory about the crystal growth,we doubted that the interface phase existed in the process of crystal growth.With this,we had looked for a lot of references connected and analyzed them.We find that the interf
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文摘:在分析前人的晶体生长理论时，作者认为晶体生长过程中可能存在界面相；在分析各种晶体生长现象后认为，晶体生长过程中界面相是存在的，并起着十分重要的作用；通过分析研究，将晶体生长过程中的界面相划分为3个有机的组成部分：界面层、吸附层和过渡层；并进一步论述了界面层、吸附层和过渡层在晶体生长过程中的地位与作用；在此基础上提出了界面相模型。 |
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Abstract: Wing-in-surface effect crafts belong to a class of transport vehicles, which make use of the ground effect to fly.
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文摘:地效飞机是一种主要利用地面效应提供支承力而飞行的运载工具。 |
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Abstract: With KET model of dense liquid-solid two-phase turbulent flow and control equations established by the authors and considering the interaction between particle and blade in the boundary condition, a numerical simulation of dense liquid-solid two
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文摘:利用作者建立的描述密相液固两相湍流的KET模型和推导的基本控制方程组，在处理壁面边界条件时考虑了颗粒和叶片的相互碰撞作用，对离心泵叶轮内密相液固两相流动进行了数值模拟，得到了泵叶轮内两相流动的一些规律，为液固两相流泵的设计提供了一定的理论依据。 |
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Abstract: With a review on the trails of the energy enhancement and thetechnique development of particle accelerators, the possible development of accelerators towards the higher energy frontier, the higher luminosity frontier, the practical application i
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文摘:在回顾20世纪加速器能量提高和技术的发展的基础上，展望了粒子加速器向高能量前沿、高亮度前沿、实际应用以及新原理、新技术的发展。 |
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Abstract: With a view of time-varying characteristic of the v ibration signal measured on reciprocating machinery and a brief introduction to the wavelet analysis and a nonlinear wavelet denoising theory, the paper makes an approach, by taking an triplex
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文摘:针对往复机械振动信号的非平稳时变特点,本文在简述小波分析及非线性小波消噪理论的基础上,以重型机械使用的三缸泵为例,研究了用非线性小波消噪方法提取往复机械状态下的波形特性。 |
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Abstract: With examples of three aspects of exploration, namely quality ofdiaphragm wall of deep-cement-mixing pile, crushed stone pile and load-bearing stratum, this paper has demonstrated the application effects of the Ground Penetrating Radar in the in
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文摘:通过列举深层搅拌桩连体墙和碎石桩质量检测及桩底持力层探测的实例，简要介绍了探地雷达在一些特殊的桩基工程质量检测方面的应用效果。 |
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Abstract: With pc-controlled liquid drop counter,protective atmospher es of ball annealing of wires is strictly kept.pickling is easily gained in proc ess of ball annealing of wires and quality wires are produced.
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文摘:采用电脑液体滴速计数仪，严格控制针布齿条用规格钢丝球化退火的保护气氛，防止和消灭针布齿条在球化退火过程中出现的表面不易酸洗现象，提高了钢丝的表面质量。 |
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Abstract: With practical examples,this paper illustrates the water-prospecting geological effects of the resistivity combined profiles method together with the IP sounding method in a certain mountain area.
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文摘:结合实例说明电阻率联合剖面法配合激电测深法在某山区找水中的地质效果。 |
