• 据此研究结果设计了淮南谢桥煤矿极软岩巷支护方案参数

    Based on these research results, the supporting plan and parameters of roadway in Xieqiao coalmine in Huainan are designed.

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  • 沙坡头水利枢纽地基处理就是工程建设必须解决的重大课题

    Treatment of very soft rock in Shapotou Water Control Project is a grave subject to be dealt with in project construction.

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  • 本文重点中的典型代表昔格地层路堑边坡稳定性进行研究

    This paper is focused on the studying of excavation slope stability of Xigeda strata, a typical model of dead soft rock.

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  • 建造极软淤泥中的建筑物可以按照飘浮水面原理来建造。

    The construction built on the mucky soil can be done according to the principle of ships floating on water.

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  • 公路工程角度出发,研究中国岩石分布公路建设影响

    Froming the Angle of the highway engineering, the distribution of extremely soft rock in China and its influences on highway construction are studied.

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  • 洞庭湖漫滩阶地冲湖积淤泥上,分布着一些次级牛轭季节性洪道成因的极软淤积物。

    There are some softer accumulation horizon in the ox-bow lake and season river on the huge mucky soil of alluvial and lacustrine deposits in accumulation terrace around Dongting lake.

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  • 并介绍天然强度稳定计算方法极软地基采用排水固结法加固提高基的承载力。

    The dike stability computation in natural strength of soft soil, the effect of increasing dike stability by berm and the experiment about stabilization of dike foundation by using sand drains m…

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  • 结果表明,辅助注支护显著提高围岩的强度承载能力有效地控制深部极软岩巷道围岩变形

    Results indicate that the bolt-grouting support helps to increase the strength and bearing capacity of the surrounding rock and to control its deformation effectively.

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  • 本文还分析辅助谐振变换开关逆变谐振过程以及辅助管的控制方式,提出了一种通用的谐振参数选取方法

    Moreover, this thesis analyzed the resonant process of ARCP soft-switching inverter, as well as the control strategies for auxiliary switches.

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  • 研究表明:放顶煤开采、提高支架工作阻力可以减缓压力,煤体合理注水可以提高煤体黏聚力抗剪强度,它们防治极软煤层煤壁片帮的有效措施。

    The following research results are obtained: the top coal caving technique and increasing the resistance of the support can reduce the pressure on the coal wall.

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  • 全世界那些顶尖创业大佬成吉思汗身上汲取力量灵感时来自个人品格塑造所形成实力一定令大佬关注因素

    When the whole world the top entrepreneurial gangster from Cheng Jisihan who draw strength and inspiration, from his personal character formed by the soft strength is very big attention to factors.

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  • 主要适用生产发光数码封装电子相关配套行业

    Mainly applicable to the production of light-emitting diode, digital tube and soft package and other electronic related industries.

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  • 拓扑具有所有功率开关均为开关输出电压应力输入输出滤波器的特点。

    There are soft switching conditions of all switches, low voltage stresses on the output diodes, and smaller input and output filters in this topology.

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  • 提出一种采用控制简单谐振电压过渡(RPZVT)开关逆变器的异步电机直接转矩控制新方案

    A scheme of direct torque-control system of asynchronous machine with a simple Resonance Pole Zero Voltage Transfer (RPZVT) inverter is proposed.

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  • 综述紫外x射线多层膜光学及其应用,指出紫外和x射线光学的优点难点

    Multilayer optics in the extreme ultraviolet and soft X-ray range is reviewed in the paper. The advantages and difficulties are pointed out.

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  • 探讨了快恢复制造过程选择适当的复合中心能级去调整恢复二因子度的可行性。

    In this paper, the probability for adjusting silicon fast recovery diode soft factors and softness by selecting proper recombination center in process is analyzed.

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  • 实验结果表明,该反向恢复度因子提高到了1.0左右,传统PIN了较大改善

    The results of test indicate that the reverse recovery softness of the diodes is increased to about 1.0, and is more improved than the conventional PIN diode.

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  • 介绍了用于X能谱测量光片X射线能量响应均匀性研究

    The study of surface uniformity of the response of the filter and X ray diode to measure soft X ray spectrum is reported.

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  • 研制小型X(XRD),可用于小型x光能谱仪

    The mini X-ray diode (M-XRD) was developed, and was used in mini soft X-ray spectrometer.

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  • 给出快速K定义推导出快速反向过电压度K关系,经试验证实了度K与反向过电压的对应关系。

    A new definition of reverse recovery softness K of fast diodes is given, and the relationship of reverse over voltage to the softness K of the fast diode is derived and verified by experiment.

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  • 电路具有结构简单实现开关效果好、开关整流二工作应力小、效率和工作可靠等优点。

    The converter is characterized by simple structure, ZVS, low switch voltage stress, high efficiency and high reliability.

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  • 香味浓郁,有黑加仑、胡椒风味丹宁如丝滑。享受。

    Beautiful robe with a blackcurrant and pepper nose, ample in mouth with silky tannins and powerfull also, all in fineness.

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  • 因此IGBT、功率MOSFET等高频电子器件配套不可缺少的快速恢复管的开发成为一个重要迫切需要

    Therefore, with the IGBT. power MOSFET high-frequency electronic devices such as matching, and the indispensable fast soft-recovery diodes developed into an important and urgent needs.

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  • 测试结果表明此类恢复具有反向恢复时间短、、反向漏电的优良特性,在国际上处于领先水平。

    The experiment results show that this kind of diode have fast reverse recovery time, large reverse softness and low reverse leakage.

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  • 不同的环境下的变化显著水平;粒宽和长宽比都达到了显著水平。

    In different area, the variety of grain length of soft rice is not significant and the variety of grain width, ratio of length to width is significant at 1 percent.

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  • 不同的环境下的变化显著水平;粒宽和长宽比都达到了显著水平。

    In different area, the variety of grain length of soft rice is not significant and the variety of grain width, ratio of length to width is significant at 1 percent.

    youdao

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