vacuum environment 中文意思是什麼

vacuum environment 解釋
真空環境
  • vacuum : n （pl vacuums vac ua ）1 真空；空處，空虛，空白。2 〈美口〉吸塵器（＝ vacuum cleaner）。vi vt 〈...
  • environment : n. 1. 周圍，圍繞。2. 圍繞物；環境，四周，外界。3. 環境藝術作品；環境戲劇（cf. environmental art）。
  1. The mechanical environment is described in the paper and then the environments in three different orbits are proposed, called leo ( low earth orbits ), meo ( medium earth orbit ) and geo ( geosynchronous earth orbits ). the influence produced by the atomic oxygen, micrometeorites and debris, ionizing radiation and cold welding under vacuum is presented in the paper. some principles are proposed, which can be as the method to choose materials of the mechanism in space environment

    空間環境中力學環境對可動結構的影響直接關繫到機構的設計問題，所以本文第四章中嶽建如：中文摘要浙江大學博士學位論文20024首先詳細論述了空間環境中的力學環境，然後給出了空間環境的三種軌道環境劃分，及每一種環境影響因素對空間可動結構設計的影響，包括原子氧、離子射線、溫度、微隕石和碎片以及真空冷焊現象等環境因素，提出了材料選擇的原則，為可動結構材料選擇提供了一定的依據。
  2. Test method for total mass loss and collected volatile condensable materials from outgassing in a vacuum environment

    在真空環境中除氣作用引起的總物質損失及收集到的揮發性可凝聚物的試驗方法
  3. Unfortunately, there was still light pollution although technology was improved many times. to ensure environment protection, wanbao company decided to remove all the old product lines and reinstall the product lines of oxide electrolysis. the total set is 30, and equipped with two 25kg vacuum induce stoves, the yield is 1400 mt per year. the main production are low - zinc low - magnesium lanthanum metal, low - zinc low - magnesium mischmetall, neodymium metal, didymium metal, yttrium metal, dysprosium metal etc

    多年來，萬寶公司一直從事氯化物電解生產，雖經多次環保治理，仍有一定污染，為確保綠色環保生產，公司決定將原有生產線拆除，全部改裝成氧化物電解生產，總臺數為30臺，年產量為1400噸，同時配備兩臺25kg真空感應爐。主要生產低鋅低鎂金屬鑭低鋅低鎂混合稀土金屬金屬釹鐠釹金屬
  4. The ground tests of inflatable structures can hardly reflect real work environment in space because of the effect of gravity and atmospheric pressure. and tiny gravity and vacuum can hardly be satisfied at the same time. moreover, the cost of space testing is prohibitive expensive

    空間充氣展開結構的空間實驗花費往往極為昂貴，而由於重力和大氣壓力的影響，充氣結構的地面實驗又很難模擬實際空間工作環境，微重力和真空環境也很難在較大空間內同時實現。
  5. 2 miniaturized vacuum arc quenching chamber which is with cucr25 contact material, cup shape and longitudinal magnetic field contact structure, intensive interrupting ability is used. vacuum arc quenching chamber is laid in a sealed insulating cylinder, which significantly improve the ability of enduring environment and phase - phase insulation character

    2 、設計了採用cucr25觸頭材料、杯狀縱磁場觸頭結構、開斷能力很強的小型化真空滅弧室；真空滅弧室布置在封閉的絕緣筒內，提高了環境耐受能力，同時使相間絕緣性能顯著提高。
  6. In this thesis, we studied the effects of the initial field state and thermal environment on quantum nonlocality and purity in atom - field system, in which the field initially in the squeezed vacuum state and in the squeezed coherent state are considered respectively

    本文研究了光場初態和熱庫性質對原子?場耦合系統量子非局域性的影響，分別討論了腔場初始處于壓縮真空態和壓縮相干態兩種情形。
  7. To discuss some problem in designing vacuum environment equipment

    對熱真空環模試驗設備設計中有關問題的討論
  8. The results showed that the given cable design could work normally under thermal vacuum environment

    理論計算表明，給定的電纜設計滿足在熱真空條件下正常工作要求。
  9. After the high altitude interceptor released from post - booster vechicle, part of its electrical cable from guidance bay to equipment bay worked in thermal vacuum environment

    摘要高空制導飛行器從母艙釋放后，制導艙與儀器艙之間部分電氣電纜處于熱真空條件下工作。
  10. To study the influence of the field - emission cathode materials for the vacuum environment of the field - emission devices, ambipolar electrode configuration was designed in this paper. cnts / ptfe and cnts / epoxy composite materials were used as field - emission cathode and the two electrode configurations were encapsuled into a static vacuum system respectively. by contrastive testing, the field - emission properties

    3 .為了研究場發射陰極材料對場發射真空器件內部真空度影響的問題，設計二極電極結構，分別以碳納米管/聚四氟乙烯和碳納米管/環氧樹脂兩種復合材料作為場發射陰極，進行了真空封裝，製成了靜態的真空系統。
  11. This paper comparatively analyzes three more practical measurement methods of surface charge distribution on dielectric in vacuum environment : surface potential measurement method, electrostatic capacitive probe measurement method, pockels effect reflecting measurement method, expounds some newly researched productions, and at last puts forward some new problems to be solved in this field

    摘要對比分析了真空中介質表面電荷分佈測量中三類較實用的方法：表面電位法、靜電容探頭法、普克爾斯效應反射法，闡述了真空中介質表面電荷測量方法的研究新成果，最後提出了這一領域留待解決的新問題。
  12. This paper aimes to accomplish ignition start - up and steady work experiments in vacuum environment using different propellant and to find optimum propellant for engineering application of mpt finally based on analyzing, comparing and researching the experimental results

    本文對不同的推進工質進行mpt點火啟動實驗及真空穩定工作實驗研究，並對結果進行分析、比較和研究，最終為mpt工程應用尋找最合適的推進工質。
  13. According to the experimental parameters of mpt, the main performance parameters of different propellants have been given by engineering performance computation under designed and working states, which has great importance for the experimental research and the future work. 2. for helium and argon, the factors which influence on mpt ' s vacuum steady work have been discussed such as the material of microwave tie - in, the distance between the probe and inner - conductor, the position of the inner - conductor, the input power of microwave, the mass flowrate of propellant and the vacuum pressure of environment, and the influence has been discussed of the microwave power and the mass flowrate of propellant on the pressure of the resonance cavity, thrust, reflected power and the temperature of the resonance cavity

    論文的工作和新見解主要包括： 1在設計狀態和工作狀態下，根據mpt的實驗參數，對mpt使用不同工質時的性能進行了工程估算，這對mpt現階段的實驗研究和今後的研究有重要的指導意義； 2對于he 、 ar推進工質，討論微波的接頭材料、探針與內導體的間隙、內導體的位置、微波的輸入功率、工質的質量流量以及環境真空度對mpt真空啟動和穩定工作的影響，並探討微波的輸入功率、工質的質量流量對諧振腔壓強、推力、反射功率以及諧振腔溫度的影響； 3對于n _ 2 、 h _ 2 、 nh _ 3 、 h _ 2o推進工質，主要討論與he 、 ar工質不同的特性，並從長遠的眼光和工程應用的角度，認為其可行性不容置疑，潛在優勢不可忽略，是未來mpt應用的主流推進工質。
  14. The x - ray diffraction, scanning electronic microscope and the squid were used to characterize the properties of the mgb2 core in mgb2 / fe tapes and wires. the effect of the proportion of mg, b and sic as well as the sintering parameters on the phase formation, microstructure and the critical current densities of mgb2 / fe tapes and wires was discussed in details. the results showed that the high purity of mgb2 core could be synthesized by both the traditional vacuum sintering and the sparking plasma sintering and the vacuum sintering environment restrained the oxidation of mg effectively

    相對于傳統真空燒結， sps燒結方式成相速度快、樣品晶粒細小均勻、 mgb2超導芯緻密性好、晶間連接優良，因而sps燒結樣品的臨界電流密度明顯高於傳統真空燒結樣品，其中未摻雜的帶材樣品經過sps800 ， 15分鐘燒結后，自場下的臨界電流密度jc值在10k時達到8 . 64 105a / cm2 ，而且隨著測量溫度和外加磁場的增加， sps燒結樣品的臨界電流密度下降率比傳統真空燒結樣品緩慢，在20k ，自場時為5 . 97 105a / cm2 ， 20k ， 3t時，臨界電流密度值仍大於104a / cm2 。
  15. In addition, the new space technology research and test center in tangjialing, northwest of beijing, has spacecraft - integration halls, space - environment chambers ( including the world ' s fifth largest vacuum chamber ) and vibration - test facilities

    此外，位於北京西北方唐家嶺新的空間技術研製試驗中心也擁有太空船裝配廳、太空環境室（包括全世界第五大的真空室）以及震動測試設備。
  16. The product vacuum arcing chamber adopts porcelain insulation case, the contactor adopts wolfram and copper material, it has the advantage of reliable performance, long life, small volume, no explosion danger, no pollution environment

    該型號真空滅弧室採用陶瓷絕緣外殼，觸頭採用鎢銅材料，具有性能可靠、壽命長、體積小、無爆炸危險，不污染環境等優點。
  17. In this paper, the vacuum thermo - cycling effects and vacuum ultraviolet effects on space inflatable structural materials were analyzed based on a thorough survey over the studies done through flight tests, ground simulation experiments and theoretical research. the main contents of this thesis are as follows : the performance damage effects of thermo - cycling on space inflatable structural fabric carbon fiber reinforced epoxy laminates ( cf / ep ), aluminized kapton ( al / kapton ) films which used as reflector of space inflatable antenna were investigated by a temperature range of - 120 120 with the vacuum degree 10 - 5 pa which conducted with space environment ground - based simulation facility

    本文在對國內外飛行試驗、地面模擬試驗以及理論研究等所取得的成果調研的基礎上，針對空間充氣結構材料進行地面模擬真空熱循環與真空紫外輻照的研究工作:利用真空熱循環地面模擬試驗機研究了真空環境（ 10 - 5pa ）中- 120 120的熱循環條件下空間充氣支撐結構織物碳纖維增強環氧樹脂（ cf / ep ）層合材料、空間充氣展開天線反射面鍍鋁聚酰亞胺（ al / kapton ）薄膜的空間環境效應。
  18. Pbg type flameproof high voltage vacuum power distribution set series and bbd type flameproof low voltage protection case series are appropriate to environment with explode gas in underground coal mine

    Pbg型礦用隔爆型高壓真空配電裝置系列和bbd型礦用隔爆型低壓保護箱系列，適用於煤礦井下具有爆炸性氣體的環境中。
  19. Because field - emission devices have strict requirement for the vacuum environment, the vacuum performance of the field - emission cathode was very significant

    由於真空場發射器件對于器件內部真空度的要求很嚴格，因此場發射陰極材料的真空性能非常重要。
  20. The vacuum pump is used to provide a vacuum environment for the freezing - drying cabinet and the condensers so as to enable the moisture in the materials to sublimate in the vacuum

    真空泵的作用是給凍干箱和冷凝器提供一個真空環境，使物料的水份可以在真空下進行升華。
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