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It can be concluded from the above experiment results that for the auxiliaryheated arc plasma generator, an area which has uniform temperature distribution andhigher temperature. In this area, the diameter of the key arc root increases and thiscondition is beneficial to reduce the cathode erosion. At the same time, it is animportant segment for the secondary arc to rotate on the cathode surface and to heatthe surface for the auxiliary heated arc plasma generator.

总结上面的实验结果可以看出:在辅助加热电弧等离子体发生器中,利用辅助电弧对阴极表面的加热作用,能够在阴极表面形成一个温度较高且分布均匀的区域;在温度较高的区域内,主弧弧根直径增大,这种情形有利于减小阴极烧损;同时,辅助电弧旋转加热阴极表面是辅助加热电弧等离子体发生器的一个重要环节。

Ablation-controlled arc plasma generator is a critical component of energy transition in electrothermal -chemical launch system. Systematic research on piccolo injector is carried out in the dissertation. The main points are as follows: 1 The nature of discharge of piccolo injector is discussed.

本文以国防科技重点预研项目&电热化学炮总体与发射技术研究&为背景,对电热化学炮中电热转换的核心部件—中心电弧等离子体发生器,进行了理论分析、工程设计和实验研究,将中心电弧式等离子体发生器成功地应用到电热化学发射实验中,主要内容包括以下几个方面: 1。

The pulsed power supply used to perform the experiments consisted of three modules storing 800kJ as a driver for an ablation-controlled arc plasma generator. A sequence of tests in which the capillary radius, length and ablated material are varied and in which the capillary power dissipation levels are varied in a certain range are discussed in order to determine the impedance matching between the discharge and the power source.

利用一个总贮能800kJ的模块化电容基脉冲功率源系统为消融控制电弧等离子体发生器强流放电提供电能输入,在一定的参数变化范围内,实验研究了脉冲功率源初始放电参数、等离子体发生器几何参数以及消融材料对消融控制电弧放电特性的影响规律。

Arc plume emis— sion spectrum which fits the Planck blackbody radiation function by assuming T=4 350 K shows Swan band system of C2.The arc plasma temperature is about 4 300~4 400K,and the error is about 100K.

放电过程中的电弧等离子体光谱测试表明其中主要有C2分子的发射峰,光谱分布曲线与普朗克黑体辐射曲线中T=4 350 K的分布情况吻合,确定放电电弧等离子体温度约4 300~4 400k,测量误差约100 K。

With this dedicated base ring, we succeeded in constructing the EAST, which generates the steady, very long wavelength pulsed plasma, and which realizes the operation of double-null, high-beta plasma as well as single-null plasma at full current.

介绍变形及装配等带来的不满足精度要求将带来的后果。在后续的实验中成功验证基准环的设计,获得稳态的、极长的长脉冲等离子体,并实现全电流下的双零高β和单零高等离子体的运行实验。

The system consists of cavity coupled ECR microwave plasma source, vacuum system, gas distributing system,d etecting and analysis system and computerized data collecting and controlling system and is provided with a RHEED with differential pumping structure for in-situ real-time monitoring in atom size.

一种宽运行气压范围无离子损伤的ECR微波等离子体增强低温外延系统与技术,系统由腔耦合型ECR微波等离子体源、真空系统、配气系统、检测与分析及计算机数据采集与控制系统组成;配置有带差分抽气结构的RHEED,可实现原子尺度控制生长的原位实时监测。

The research results show that comparing with the single plasma technique,the SO2 removal rate of the combination technique is increased 5%~20%.

研究结果表明,等离子体协同光催化去除烟气中的SO2与单独采用等离子体技术相比,其SO2的去除率可提高5%~20%。

Due to the charge process of dusty particles, the electric conductivity, dielectric coefficient and modulus decay of dusty plasma are larger than that of plasma.

结果表明:由于尘埃充电过程,尘埃等离子体电导率、介电常数以及衰减系数都比一般等离子体的大。

The PCVD plasma impregnation process of hot forging die includes surface deoiling, polishing, supersonic cleaning in acetone and alcohol dewatering of the die after quenching at 1070 deg.c and tempering at 530 deg.c; plasma nitriding in a industrial PCVD vacuum furnace; and PCVD plating.

本发明公开了一种精密叶片热锻模具的PCVD等离子体渗镀复合强化方法,将经1070℃淬火,530℃回火后的叶片模具(HRC=43-50)经表面除油、抛光后浸入丙酮中超声波清洗,酒精脱水;然后放入工业型PCVD真空炉内进行等离子体渗氮和PCVD镀膜处理。

A method to measure the plasma temperature during the initial period by using of the continuos spectra and the temperature change with time is obtained, which is a good complement to existed method.

提出了一种利用连续光谱测量激光等离子体形成初期温度的方法,得到了等离子体温度随时间的变化关系,该测试方法对已有的测量方法是一种补充。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。