Yet China's vigour owes much to what has been happening from the bottom up as well as from the top down.

Managing from the top down, we operate with full legitimacy.

我们进行由上而下的管理有充分的合法性。

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Keeping the electron tube amplifier in a good state can reduce the maintenance costs, prolong TV transmitter lifetime, promote the quality of the screen, at the same time, it can also secure the safety of the broadcasting.

使用、维护好电子管放大器能大大降低维修成本、延长发射机寿命、提高画面质量，确保安全播出。

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It joins rapidly, keeps in touch with the characteristic such as being reliable, apply to the radio equipment and electron tube instrument field and join the coaxial cable of the radio frequency extensively.

它具有连接迅速，接触可靠等特点，广泛应用于无线电设备和电子仪器领域连接射频同轴电缆。

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The vacuum tube is an electron tube from which all or most of the gas has been removed, permitting electrons to move with no or low interaction with any remaining gas molecules.

真空管是一种内部气体全部或部分抽空的电子管，从而使电子在不受或少受气体分子的干扰下运动。

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Brazing quality and product reliability are both increased as using high frequency pulse microplasma arc heating process for assembly brazing of cathode and photoetching grid of electron tube.

采用高频脉冲微束等离子弧做为电子管阴极和光刻栅极装配钎焊工艺的热源，提高了钎缝质量和产品的可靠性。

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A method of realizing untouched fire test by a new transducer GP 16 fire test electron tube was introduced, and the circuit for finishing the functions was given.

介绍了采用新型传感元件GP-16火焰检测电子管实现非接触式火焰检测的方法，并给出了完成其功能的电路图。

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The product host circuit has adopt the IGBT component, has complied with fundamental lattice new being old characteristic generation high frequency equipment with shell electron tube Bo.

本产品主电路采用IGBT器件，从根本上格新了以玻壳电子管为特征的老一代高频设备。

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Suitable high frequency magnetic conductive inductor was made through analyzing the high frequency vibrating circuit of electron tube and doing an experiment of magnetic conductive inductor.

通过对电子管高频振荡线路的分析和对导磁体感应器的试验，制作了合适的高频导磁体感应器。

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After long-term research by scientists from various countries, they found that microwave electron tube using sheet electron beam can work at high-frequency and can produce high power.

经过各国科学家长期的研究，发现使用带状电子注的微波电真空器件能够工作在高频段并且产生高功率微波。

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The joints of high purity alumina ceramic and oxygen-free copper with high strength and low gas loakage are needed in electron tube.

电真空应用中，要求高纯氧化铝与无氧铜的连接接头具有较高的强度和气密性。

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It adopts the push-pull circuit of electron tube in the inductance coupling way. Its oscillating frequency is 20 50 MHz.

该离子源采用电子管推挽式电路、电感耦合方式，振荡频率为20～50MHz。

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Graphitic Anode of Electron Tube

电子管石墨阳极

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He SCL-90 symptoms self evaluation scale was applied to study 128 female workers in the air conditioned room of electron tube workshop.

本文采用SCL&90症状自评量表对某电子管厂空调车间128名女工的心理卫生状况进行了分析。

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This article focuses on the calculation of electron tube water cooling anode dissipation capacity and the measures to increase the capacity.

给出了电子管水冷阳极耗散能力的计算方法和提高水冷阳极耗散能力的措施。

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Within the last few decades, the electron tube has been largely replaced by the transistor.

在近几十年里，电子管已大大为晶体管所取代。

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An electron tube used to generate or amplify electromagnetic radiation in the microwave region by velocity modulation.

通过速率的调制在微波波段产生或增强电磁辐射的电子管。

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Brazing for assembling cathode and photoetching grid of electron tube using high frequency pulse plasma flame

电子管阴极和光刻栅极的高频脉冲等离子弧钎焊

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An electron tube is generally used for amplification, and vacuum tube is another term for this device.

电子管通常用来放大，而真空管则是电子管的另一名称。

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Experimental results of the improvement of water resistance of DM-320 glass for electron tube were illustrated.

介绍了提高电真空DM-320玻璃抗水性的实验结果。

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The field of electronics includes the electron tube, transistor, integrated circuits and so on.

电子学的范围包括电子管、晶体管和集成电路等。

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