低真空泵 的英文怎麼說
中文拼音 [dīzhēnkōngbèng]
低真空泵
英文
coarse vacuum pump-
When the thickness increases up to a critical value, about 30 nm, the spotty rheed pattern gradually changes to streaky pattern, and the rheed oscillation curve appears. the rheed pattern of the ultra thin lno film deposited in the relatively high oxygen pressure is streaky pattern. with pumping the oxygen pressure to the relatively low value, the streaky rheed pattern gradually changes to spotty one
我們發現在較低的真空度下，即氧分壓處於2 10 - 4pa和3 10 - 3pa之間， lno晶格中的一個o2 -將會轉移兩個電子給兩個ni3 + ，並且移動到薄膜表面形成o2被泵抽走，從而導致鈣鈦礦結構的垮塌，其相應的rheed圖樣呈現出清晰而明亮的點，表明表面為較為粗糙的三維島狀結構。Our leading products are : ball mill, superfine agitating mill, vacuum plaster agitator, slip agitator, pressure - glazing tank, shower - dedust glazing booth, vibration sieve, leakage tester for water - closet, blast heater, rapid dispersion machine, magnetic separator, base - wipe machine, electric diaphragm pump and the vertical casting unit for medium and top grade of one - piece water - closet and close - coupled water closet, wash basin, pedestal, low level cistern and sink
公司主導產品有球磨機、超細攪拌磨、真空石膏攪拌機、泥釉漿攪拌機、釉漿壓力罐、水浴噴釉廚、旋振篩、座便器漏水檢驗機、熱風爐、座便器彎管施釉機、高速分散機、磁選機、擦坯機、電動隔膜泵及生產中高檔衛生潔具的洗面器、分體座便、聯體座便、面具柱、低水箱洗滌槽等立澆成型機。The working principle of liquid helium cryocondensation pump is strong absorptive force between 4. 2k cryogenic surface and gas molecules. the pump has great advantage in large instant pumping speed under high gas load, large working pressure range, high & neat ultimate vacuum
利用4 . 2k低溫面對氣體的物理吸附機制實現高氣載下瞬時大抽速的液氦低溫冷凝泵，具有工作壓強范圍寬、能獲得清潔真空環境的特點。At the appropriate pressure, the chamber is opened to a high-vacuum pumping system that continues to reduce the pressure of the process chamber.
在適當的壓強下，工藝室被接通高真空泵系統抽氣，以繼續降低工藝室的壓強。This pump is of jet pump with circulating water asworking liquid and designed by negative pressure produced from spraying liqunid. it is ar new vacuumair pump, which can provide with circulating cooling water to the reaction of device at same time
該泵是以循環水為工作流體，採用射流技術產生負壓而設計的一種新型真空抽氣泵，它不僅是一種真空抽氣裝置，同時還能向反應裝置中提供循環冷卻水，該泵具有不用油、無污染、耐腐蝕、噪音低、方便靈活等特點。Liquid helium cryocondensation pump has great advantages in large pumping speed, working pressure range and high ultimate pressure, etc. it ' s more excellent than any other vacuum pump. it can meet the vacuum requirement of nbi and can improve the transportation efficiency. the development of neutral beam injection ( nbi ) system in the world, the structure of nbi system used on the ht - 7 device of asipp was introduced in the thesis
液氦低溫冷凝泵是利用低溫面對氣體有強吸附能力的原理，實現抽氣的真空獲得設備，它具有抽速大、工作壓強范圍寬、極限真空度高等一系列優點，是普通真空設備無法比擬的，作為中性束注入系統的主抽泵，它能滿足中性束注入系統對大抽速的要求，提高中性束的傳輸效率。Abstract : “ high pressure oil shock ” has been found to be the major source of shock noises in the rotary piston vacuum pumps. recently, we found that the oil shock may shift forward. here, the high pressure oil - shock and the formation mechanism of three other types of shock were analyzed so as to reduce the vacuum pump noises
文摘: 「高速油液沖擊」是滑閥真空泵沖擊噪聲的主要激勵源，通過試驗發現了這一沖擊的前移現象，並進一步分析了高速油液沖擊和其他三種沖擊的形式，為降低滑閥真空泵噪聲提供了可靠的依據。Precision vacuum casting technique of the low pressure shell of the kerosene pump
煤油泵低壓殼體真空熔模精密鑄造工藝The experiment took water as the medium and experiments on two jet modes were carried out under the falling film vacuum evaporating. the experimental results indicated that the two ejectors in series compensation method could adjust the variational work situation due to the decrease of primary steam or secondary steam and insure the normal production. at the same time, the ejector ' s best work situation founded in the experiment would provide reference for ejector ' s design and usage
本實驗建立了一套降膜真空蒸發裝置，以水為介質，對變工況下單級和串聯噴射熱泵蒸發進行了實驗，結果表明兩級串聯補償噴射裝置能對由引射蒸汽和工組蒸汽壓力降低所造成的混合蒸汽壓力降低進行調節，達到了變工況下正常生產的目的。Vacuum technology ; acceptance specifications for diffusions pumps and vapour jet vacuum pumps for vapour pressures of the pump fluid 1 mbar
真空技術.流體蒸氣壓低於1mbar的擴散泵和蒸氣噴射真The principle, the structure, the prevention of back - streaming of pump oil, the reducing noises, the designs and the calculations of the pump are described in detail in order to systimatically understand, correctly use and reasonablly maintain the sliding vane rotary pump to benefit enterprises
作者從該泵的原理、結構、防止返油、降低噪音以及設計計算等諸多方面進行了詳細論述，其目的在於使廣大用戶對旋片真空泵有一個比較系統的了解，從而正確使用和合理維修旋片真空泵將給企業帶來可觀的經濟效益和社會效益。It is very important to reduce the vibration of the vacuum pump for keeping its quality and lengthening its service life
摘要降低滑閥式真空泵的振動對提高泵的質量、延長泵的壽命有著重要的意義。The abnormal conditions of polyester vaccum system such as the frequent exchanging of liquid - ring pump in prepolycondensation, the occlusion of scraped condenser and vaccum atmospheric leg, the eg spray flow decreasing of vaccum injection pump, the working performance on the low side of the injection pump itself were analysed
摘要對聚酯真空系統的異常情況如預聚液環泵頻繁切換，刮板冷凝器、真空大氣腿堵塞、真空噴射泵eg噴淋流量降低，噴射泵本體工作性能偏低等進行了分析。The traditional molecular pump with popular bearing can not meet the challenge of semiconductor manufacturing because of the vibration, short life, unpure vacuum and so on. so it is very important to design the magnetic bearing and power amplifier for molecular pump
本課題研究的目的是，解決傳統軸承型分子泵應用在半導體製造行業時出現轉速低、壽命短、真空不潔凈等問題，設計分子泵的磁懸浮軸承結構和功率放大器，對實現分子泵在半導體工業中的良好應用有著重要的意義。So they can be used for spectroscopy, coherent communication and quantum optical studies. they also can produce various kinds of nonclassical states of light generation of squeezed vacuum below threshold, of strongly intensity - correlated twin beam above threshold and quadrature squeezing of the pump wave above threshold
同時，連續光學參量振蕩器也是一種產生非經典光場的理想裝置：低於閾值運轉可以產生正交位相壓縮真空態，高於閾值運轉可以產生強度關聯的孿生光子對以及反射泵浦光的正交分量壓縮。Germany busch vacuum pump, which owns high vacuum degree, low noise and long service life, is adopted
德國貝克的真空泵，真空度高，噪音低，壽命持久。分享友人