試驗用開關 的英文怎麼說
中文拼音 [shìyànyòngkāiguān]
試驗用開關
英文
test switch- 試 : 名詞(古代占卜用的器具) astrolabe
- 驗 : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
- 用 : Ⅰ動詞1 (使用) use; employ; apply 2 (多用於否定: 需要) need 3 (敬辭: 吃; 喝) eat; drink Ⅱ名...
- 關 : Ⅰ動詞1 (使開著的物體合攏) close; shut 2 (圈起來) shut in; lock up 3 (倒閉; 歇業) close down...
- 試驗 : trial; experiment; test
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Nowadays, the switches which are being studied or applied, such as gas spark gap, thyratron and ignitron, etc, are of different structures, operating principles, advantages and disadvantages, and are applied in various situations and fields
目前處于試驗中或者投入實際應用的開關元件很多,如火花放電間隙、閘流管、引燃管等,它們有不同的結構、原理和優缺點,應用在不同的場合和領域。In the article, the originator worked out the mechanism of magnesium - base alloys catching fire ; analyzed briefly the influence of the temperature, the heating velocity and the pressure of oxygen in the atmosphere on the lumps and scraps of pure magnesium ’ s catching fire, and designed a practical method to measure the kindling temperature of the lumps and scraps of pure magnesium precisely, with which the initial quantization of kindling temperature can be realized
本文圍繞鎂合金阻燃技術的開發作了許多基礎性的研究工作,通過分析大量的相關文獻和試驗結果,初步得出了塊狀鎂和鎂屑的燃燒機理,簡要分析了溫度、升溫速度、環境中氧的分壓對塊狀鎂和鎂屑的起火燃燒所產生的影響。設計出了精確度高、實用性強的塊狀鎂和鎂屑的燃點測試方法,使塊狀鎂和鎂屑的燃點得到初步的量化。On the part of the theory of the automatic test technology used in the rocket engine ground test, on the basis of the architectures and standards of some typical automatic test systems ( ats ), the test action model, ats data model, database model and the universal instrument - driving model are established
在火箭發動機地面試驗自動測試技術理論方面,在典型自動測試系統( ats )的體系結構和相關標準的基礎上,建立了火箭發動機地面試驗測試行為模型、 ats數據模型、數據庫模型和通用儀器驅動模型,然後,建立了面向火箭發動機地面試驗的開放式柔性ats體系結構軟硬體模型。For a class of series - wound active power line conditioner the design approach law of a new fuzzy integral sliding mode variable structure control is presented. this method adjusts power electronic switch in order to achieve anticipated balance volt, finally makes active power line conditioner not only possess good robustness of variable - structure control and decrease vibration to the most but also increase the steady state precision. series - wound aplc adopted this control method possesses good dynamic and steady state performance
針對串聯型有源電網調節器運用變結構控制策略,調節電力電子開關模式,以獲得預期的平衡電壓,對串聯型有源電網調節器提出了模糊積分變結構控制方法,使串聯型有源電網調節器既保持了常規滑模控制強魯棒性的優點,又減弱了滑模控制的抖振,提高了系統的穩態精度,使系統具有良好的動態和靜態性能,模擬試驗表明該控制策略是一種十分有效的控制方法。The main products of our company : series of mining emulsion pump station, series of electric haulage shearer, sparying pump station, series of mining flame - proof vacuum / air electromagnetic starter, series of mining vacuum / air feeding switch, series of mining fame - proof and natural - safe. type ac soft starter, series of hydraulic stand valve and pipe system, high flow rate quick - moving valve, the new product nearing into market - the hydraulic support electric - control system, mining electric drill, hydraulic valve test table, electric performance test table
公司主導產品為:系列電牽引採煤機、系列礦用乳化液泵站、噴霧泵站、礦用隔爆兼本質安全型交流軟起動器、系列礦用隔爆真空、空氣電磁起動器、系列礦用真空、空氣饋電開關、系列液壓支架閥類及管路系統、大流量快速移架閥、即將投入市場的新產品? ?液壓支架電液控制系統、煤電鉆系列、液壓閥試驗臺、電性能試驗臺等。This paper unfolds engineering disposition and theoretical research of negative temperature high performance concrete ( nthpc ) with the damage of many factors motivation, the project background based on qing - zang railway engineering, which is one of four - emphasized engineering during the tenth five - plan. due to the difference of environment of construction and service between nthpc and ordinary concrete, and therefore durability of nthpc is required to higher level. at a first, nthpc must avoid frozen damage at early age and possess anti - freezing property at later period, in order to meet engineering practicable application need, and this are two emphasized and difficult problems, as for nthpc ; by means of mechanism analysis about deicing - agent ingredient and anti - freezing at early period, adopting composite technique routine of mineral addition + anti - freezing element + water - reducer4 - air - entraining + anti - erosion of steel component etc, based on orthogonal experimental approach, fd - 1 composite functional admixtu re was manufactured, which has more property and orientation on qing - zang railway
負溫混凝土由於和普通混凝土在施工環境及服役環境上存在的差異,因此表現為比普通混凝土更為較高的耐久性要求;負溫混凝土首先要避免早期的凍害以及具備長期抗凍性能,才能夠滿足工程實際應用的要求,這也是負溫混凝土必須解決的兩大技術關鍵;通過對目前常用防凍劑組分作用機理的分析研究及混凝土早期防凍機理探討,採用礦物外加劑+防凍組分+高效減水劑+引氣+阻銹組分功能復合的技術路線,通過正交試驗設計復配了適應青藏鐵路工程要求的專用多功能復合型外加劑fd - 1 ;並在此基礎上配製不同等級負溫高性能混凝土,開展一系列包括硫酸鹽侵蝕、氯離子滲透、抗凍融循環、收縮及耐磨性等耐久性能研究;通過對fd - 1組分和摻量的調整,優化負溫混凝土在施工特性、力學指標和耐久性三個方面的兼容、協調性。The aseismatic behaviors of the two frames are analyzed and compared, with emphases on failure mechanism, hysteretic property, displacement ductility, energy - dissipation capacity as well as stiffness degeneration, etc, to find the influence of steel - fiber concrete to the aseismatic behaviors of the prestressed concrete flat - beam frame structures
計算機模擬模擬結果和試驗結果的比較發現,在框架的開裂破壞形態、極限承載力等方面基本吻合。該研究成果可為扁梁框架結構體系的設計和有關規范的增補提供依據,具有很好的應用前景。Then the thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed ribbed channel are measured by using infrared camera and the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : the impingement cooling effectiveness of ribbed surface is affected greatly by the jet - to - surface spacing, and the best effectiveness is achieved under the jet - to - surface spacing equals to 1. the correlation formulas of impingement heat transfer characteristics to the parameters are finally concluded and in good agree with the experiment data
最後,對單排、雙排沖擊孔試驗板在半封閉通道展開了流量系數的研究,在變化各種幾何因素及流動因素的情況下由實驗得出了沖擊孔流量系數值,討論並分析了各種因素對流量系數的影響程度,建立了沖擊孔流量系數的準則關系式,與實驗結果對比表明:該準則關系式與實驗實測數據吻合較好,精度較高,有較高的工程應用價值。With the research on design and construction specifications of subgrade slope protection, the author in this paper, based on the success experiences of subgrade slope protection all over the country, and considers the advanced technology and experience of abroad, analyzes the slope distress types and causes, and studies systemically the applicability and structure character of these slope protection model, then recommends the typical slope protection model which can used in the most area of our country ; according to the analysis and researches on the types of slope protection, this paper states selection principle of slope protection ; to get the statistical relations between slope surface erosion volumes and related factors, grasp the law of slope surface erosion on the whole, the simulate test of slope surface erosion is done in laboratory ; the drawing library software of typical slope protection is programmed by application the skill of autocad 2000 redevelopment and the tool of vba
本文結合《路基邊坡防護設計與施工技術規范》課題的研究,在分析總結全國各地邊坡防護設計、施工方面的成功經驗的基礎上,借鑒發達國家公路路基邊坡防護的先進經驗和技術,剖析了路基邊坡的病害類型和原因,對各種類型的適用性及構造范圍進行了系統全面地研究;推薦出了適合我國大部分地區的邊坡防護型式;提出了防護類型選擇的原則;進行了室內邊坡坡面沖刷模擬試驗,得出填方路基坡面沖刷量與有關因素的統計關系,從宏觀上了解坡面沖刷的主要規律;應用autocad2000二次開發技術,運用vba開發工具,開發了邊坡典型防護型式圖庫。For understanding the dynamic processes of the all scales cloud systems of mei yu, and the relationship between mei yu system and the summer monsoon of eastern asia, the hubex has been carried on by the cooperation of china and japan in summer since 1998. the data observed by hubex, the data observed by other monsoon experiments and the general data ( gts data ) were merged into the assimilation system of game and made into the game reanalysis data, so how the game reanalysis data
為了更好地理解梅雨鋒區多尺度雲系的能量與水分循環過程以及他們與地面水文過程的相互作用,從而搞清梅雨區雲系的多尺度動力學及其與東亞季風的關系, 1998年夏季中日合作開展了淮河流域能量與水分循環試驗( hubex ) ,該試驗和game其他試驗的探空加密觀測資料作為原始資料的一部分經過同化分析,得到了game再分析資料。On the aspect of experiment, the investigation has been carried out from simple to complicated, i. e. started from the single pulse and double pulses test of phase module, and then to consecutive - pulse chop test, and then to three phase inverting test
在試驗研究上,採用了由簡到繁,由易到難的策略,從相構件模塊的單、雙脈沖開關試驗入手,經過模塊的連續脈沖斬波試驗,再到三相逆變試驗。Initial recovery voltage and peak recovery voltage across the circuit - breaker have an essential affect on re - strike. for assessing performance of circuit - breaker, the higher inductance and lower inductance must be considered at the same time when testing according to theoretic analysis, the directly test circuit on switching the no - load overhead by high - voltage circuit breakers of rated voltage 252kv and below, in compliance with the correlative standard jb5871 and the test devices, and the test circuit parameters have been calculated and the many testes have been carried out
在理論分析的基礎上,考慮實驗室現有設備的情況依據標準jb5871的規定,選用合適的試驗設備,對試驗線路的參數進行計算,在實驗室建立了252kv及以下電壓等級斷路器開合線路充電電流直接試驗線路,利用該線路進行了數臺產品的試驗,分析了試驗結果,並根據試驗結果和理論基礎討論了gb t1984 - 200 《交流高壓斷路器》 (報批稿)關于開合線路充電電流試驗的有關規定。Low - voltage switchgear and controlgear for industrial use. connecting conductors to be used for temperature - rise tests
工業用低壓開關設備和控制裝置.溫升試驗用連接導線Founding on the successful design for the information management system of assembly testing of vehicle of nanjing automobile research institute, the author concentrated this paper on the process of establishment of the system, in which the method of object - oriented system analysis has been used for the abstraction of object model, and the relation database based on the model has been constructed according to the demand analysis
作者在研製開發南京汽車研究所總成試驗信息管理系統的基礎上,重點闡述了根據需求分析,運用面向對象的系統分析法,建立總成試驗信息管理系統的對象模型,進而構建總成試驗信息關系數據庫,實現總成試驗信息計算機管理的過程。The simulation experiment on the granite rock of the shiplock has been carried out with computer, and then regard the media of the rock as elasto - plastic material and in the stress space, the general constitutive relation is described
在研究中,對三峽船閘的花崗巖體運用flac3d進行了計算機模擬試驗,將開挖巖石類介質視為彈塑性,在應力空間中,給出了彈塑性本構關系的一般形式。By means of wide investigation, instruments development, a series of model experiments and relative theory analysis, following results are obtained in river model time scale distortion ratio, model roughening, inflow and outflow controlling methods and equipment, new water level and velocity measuring technique, model automatic measuring and controlling system : ( 1 ) with the aid of configuration software, a large scale river model automatic measuring and controlling system is developed, realizing river model automatically controlling and basic hydraulic parameters automatically measuring
本文通過廣泛調研、儀器研製、系列模型試驗和相關的理論分析,在河工模型時間變態率控制、模型加糙、出入流檢測方法和設備、水位流速測量新技術、模型自動測控系統等方面取得了下列成果: ( 1 )應用工控組態軟體技術,開發了一套大型河工模型自動測控系統,實現了模型內外邊界的自動控制和基本水力參數的自動量測。Technical requirements testing methods for supervision modul of telecommunication switch power supplies
通信用開關電源系統監控技術要求和試驗方法Early age cracking of concrete has re - emerged as an important issue all over the world in recent years. the stress, due to restrained volume change related to thermal deformation and shrinkage in the early age concrete, is the main driving force for the deleterious cracking in the construction stage. during the development of the stress, creep, a very important property of concrete, is always developing. creep contributes to 40 ? - 50 ? reduction of the elastically induced stress in the restrained specimen. ring test, a qualitative test, can provide information to assess the potential for cracking of different concrete. an overview of ring test developed in recent years and mechanism of uniaxial tensile creep test is described in this paper at first. then, an innovative test equipment based on ring test is outlined
近年來混凝土早期裂縫問題再次引起全球工程界的廣泛關注.早期混凝土由於體積變形受到約束而產生的應力是導致混凝土開裂的主要因素.在混凝土應力發展的同時,混凝土徐變也在同時發生著變化.有研究表明,徐變能減少40 ? - 50 ?的早期應力.圓環試驗是用於定性評價混凝土材料抗裂性能的試驗方法之一.本文首先分析了圓環試驗和單軸拉伸徐變試驗的原理,創造性地將圓環試驗用於測量早期混凝土的干縮徐變,並設計了試驗方案Later on, the non - linear dynamic model of the coupled rotor - body system with the mrfd was constructed and a test - bed which is fit for this model was designed. at last, the dynamic stability test for the system was implemented. the result of which says that the mrfd can improve the dynamic stability of the system markedly
採用開-關控制策略進行帶磁流變阻尼器的旋翼/機體耦合動穩定性試驗,結果表明,磁流變阻尼器能明顯提高旋翼/機體耦合動穩定性裕度,體現了具有自適應能力的優點。According to national industrial policies, a temporary zero tax rate is exercised for the investment from new technical service users, national sci - tech problem - tackling projects, intermediate experiment, industrial experiment, open laboratories, projects of military industrial products for national defence service and their accessory products after regulatory tax for fixed assets investment is levied on those above projects
根據國家產業政策,新建科研業務用戶、國家科技攻關項目和高技術攻關項目、中間試驗、工業試驗和開放性試驗室以及直接為國防服務的軍工產品、國防專用配套產品項目的投資,在徵收固定資產投資方向調節稅時,暫執行零稅率。分享友人