負二次方 的英文怎麼說

中文拼音 [èrfāng]
負二次方 英文
inverse square
  • : Ⅰ名詞1 (負擔) burden; load 2 (虧損) loss 3 (失敗) defeat Ⅱ動詞1 [書面語] (背) carry on th...
  • : Ⅰ數詞(一加一后所得) two Ⅱ形容詞(兩樣) different
  • : Ⅰ名詞1 (次序; 等第) order; sequence 2 [書面語] (出外遠行時停留的處所) stopping place on a jou...
  • : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
  • 次方 : capital
  1. The air conditioning or heating water systems with primary water system in heat source or cold source side and secondary water system in load side divided by direct connection mode need to adopt connectors or water mixers

    摘要用直接連接式劃分熱源(或冷源)側一水和荷側水的供暖或空調水系統,需要採用連通器或混水器。
  2. Considering enough the property of the equa - tion, we prove existence of absorbing set of the solution in h ~ ( 1 ) by the method of changeing the higher order nonlinear term as nonnegative guadratic form and prove existence of absorbing set of the solution in h ~ ( 2 ) by the method of linear combining of energy inequality and multiform classical inequality

    我們充分考慮程的特點,將高階非線性項化為一非型使得解在h ~ 1中的吸收集的存在性得以證明。通過能量估計的巧妙組合以及多種形式的不等式進行精細的估計以獲得h 「的吸收集的存在性
  3. The other was to research new li - al solid solution alloy material and use it as anode in lithium battery. by the trace alloy component, aluminum, doping in lithium metal, it was hoped to improve the sei film stability of lithium / electrolyte interface and consequentially enhance the performances of lithium anode. meanwhile, different form the previously studied lial alloy that had very high content of aluminum, such alloy should not decrease the mass specific energy and electrochemical potential of lithium electrode

    :研究新型鋰鋁固溶體合金材料並將其應用於鋰電池中,通過微量合金成份鋁的摻雜提高鋰電極/電解質界面sei膜的穩定性,進而提高鋰極性能;而該合金不會像以往高鋁含量的鋰鋁合金那樣降低鋰電極的質量比能量和電化學反應電勢。
  4. As the second pillar of the " three - pillar " pension system, enterprise pension have been carried out extensively in the west developed countries, and had ripe running mechanism, they and state pension insurance take on the main function of providing for the aged together

    企業年金作為三層養老保險體系中的第,已在西發達國家得到了廣泛推行,並具有成熟的運作機制,與公共養老金計劃組合在一起,共同擔著主要的養老功能。
  5. Section 22 keeping of record books of fish catch ? the owner, licensee, master, or any person - in - charge of a fishing vessel shall have a record book on board the boat reflecting the fish catch, fishing area, the quantity in tubs / boxes or other containers in kilograms of fish catch, spoilage, landing point, transshipment and / or other means of disposal for a period of five ( 5 ) years from the last entry

    節保持捕魚記錄冊? ?漁船的船主、持照人、僱主或任何責人應當在船上保持一本記錄冊,以五年為期反映上一錄入以來的捕魚,捕魚區,用桶/箱或其它容器以公斤計的捕魚量,腐壞量,靠岸點,轉運和/或其它處理式。
  6. Before world war ii, dry closets were used in hong kong, and the sanitary board s traditional waste disposal method was to bury the waste underground, or dump it into the sea. in 1935, the sanitary board was re - organised and re - named, the urban council

    大戰以前,香港市民大多沿用以木桶盛載排泄物,再埋之於地下的傳統排污法,排污木桶由成立於1883年的潔凈局(即市政局的前身)責收集。
  7. ( 5 ) as torsion is increased, the anticlockwise secondary vortexes and the negative area of the stream function increase ; the axial velocity moves anticlockwise ( annular pipe ) or clockwise ( circular pipe ) ; the friction factor ratio finally reaches the value about 1

    ( 5 )增大撓率,逆時針向旋轉的一渦和流函數的值區域增大,軸向速度最大值的位置按逆時針(環形截面)或順時針(圓截面)向旋轉,摩擦系數比最終趨向於1 。
  8. ( 3 ) when f is about fr, the secondary flow reaches its weakest intensity, but has a most complicated structure. for co - rotation and counter - rotation in which the centrifugal force dominates the flow, the secondary flow in a rotating helical pipe has the same direction with that in a stationary one. for counter - rotation in which the coriolis force dominates the flow, the secondary flow has the opposite directions to that in a stationary one

    ( 3 ) f在fr左右(離心力和科氏力相當的旋轉) ,流強度最弱,但結構最復雜;對于正旋轉和離心力占優的旋轉,流速度的向和靜止的情況相同;對于科氏力占優的旋轉,流速度的向和靜止的情況相反。
  9. The paper discussed a method combining integer programming based on similarity coefficient with quadratic programming considering ratio of capacity to loading in workshop to obtain parts families and machines groups in two steps

    摘要採用了基於相似系數的整數規劃和考慮車間資源荷分配比率的規劃相結合的法,分兩步得到了零件族和設備組。
  10. Firstly, the experimental phase current and input power data obtained from load test are employed to estimate the parameters in ii rated condition. then, the phase current and input power data in locked rotor condition are used to track the variation of the parameters of the secondary coil with slip frequency. the classical method and the direct modification method are also used to estimate the parameters of the induction machine in comparison with this technique

    首先利用了載試驗的定子電流和輸入功率數據來識別額定工況下的電機參數,然後又使用了堵轉時的定子電流、輸入功率數據來識別電機繞組參數隨轉差頻率的變化,並與傳統參數測試法和直接修正參數法進行了比較。
  11. On - line monitoring of hvcb is the precondition of predicting maintenance, is the key element of reliable run, and is the important supplement to the traditional off - line preventive maintenance in fact, the faults are made by hvcb, no matter in number or in times, is over 60 % of total faults so it has determinative importance for improving the reliability of power supply and this can greatly decrease the capital waste used by - dating overhaul in this paper, the inspecting way of hvcb mechanism characteristic is discussed the concept of sub - circuit protector is presented, the scheme that we offered has been combined with sub - circuit integrality monitoring theory, to ensure that it has the two functions as a whole according the shut - off times at rated short circuit given by hvcb manufacturer, the electricity longevity loss can be calculated in each operation, and the remained longevity can be forecast too an indirect way for calculating main touch ' s temperature by using breaker shell temperature, air circumference temperature and breaker ' s heat resistance is improved in this paper, and main touch resistance can be calculated if providing the load current msp430, a new single chip microcomputer made by ti company, is engaged to develop the hardware system of the on - line monitoring device, and special problem brought by the lower supply voltage range of this chip is considered fully

    高壓斷路器所造成的事故無論是在數,還是在事故所造成的停電時間上都占據總量60以上。因此,及時了解斷路器的工作狀態對提高供電可靠性有決定性意義;並可以大大減少盲目定期檢修帶來的資金浪費。本文論述了斷路器機械特性參數監測法;提出了迴路保護器的概念,並將跳、合閘線圈完整性監視和迴路保護結合起來,給出具有完整性監視功能的迴路保護器實現案;根據斷路器生產廠家提供的斷路器額定短路電流分斷數,計算每分閘對應的觸頭電壽命損耗,預測觸頭電壽命;提出根據斷路器殼體溫度和斷路器周圍空氣溫度結合斷路器熱阻來計算斷路器主觸頭穩態溫升的法,並根據此時的荷電流間接計算主觸頭迴路的電阻;在硬體電路設計上,採用美國ti公司最新推出的一種功能強大的單片機msp430 ,並充分考慮該晶元的適用電壓范圍給設計帶來的特殊問題;在通信模塊的設計中,解決了不同工作電壓晶元之間的介面問題,並給出了直接聯接的接線案。
  12. Answer : preparative job includes : understands workplace one, the moving circumstance of 2 equipment, this job has with moving equipment without direct connection, have the job that cooperates without need with other team and group ; makes working priority discipline and the blemish that prepare to solve and weak point ; the staff member makes clear to divide the work and be familiar with the concerned data such as blueprint and test gauge cheng ; should be had the blueprint that agrees with actual state, record that examines last, newest rectify spare parts of the instrument that decides requisition, test gauge cheng, qualification, machine parts or tools kept in reserve, tool and join lead to wait ; is a few righter important equipment, especially complex protector or couplet jumps loop protector, should weave test program, working controller should fill in ticket of protection safety precaution, examine and approve via technical chief, just can carry out

    答:預備的工作包括:了解工作地點一、設備的運行情況,本工作與運行設備有無直接聯系,與其他班組有無需要配合的工作;制定工作重點項目及預備解決的缺陷和薄弱環節;工作人員明確分工並熟悉圖紙與檢驗規程等有關資料;應具備與實際狀況一致的圖紙、上檢驗的記錄、最新整定通知單、檢驗規程、合格的儀器、備品備件、工具和連接導線等;對一些重要設備,非凡是復雜保護裝置或有聯跳迴路保護裝置,應編制試驗案,工作責人應填寫繼電保護安全措施票,並經技術責人審批,能實施。
  13. Admissibility of nonnegative quadratic estimators for error variance with respect to restricted ellipsoidal parameter space

    橢球約束下誤差差非估計的可容許性
  14. As one of the latter algorithms, ant colony algorithm has been used to many fields, such as : traveling salesman problem, quadratic assignment problem, network routing and load - balancing problem, vlsi design, etc

    摘要蟻群演算法作為一種較新的進化類法,目前已經在若干領域取得了成功的應用,諸如:旅行商問題、分配問題、通訊網路中的路由問題以及載平衡問題、大規模集成電路設計等。
  15. Taking the soft ? sensing of oxygen content in flue gas, unburned carbon content in fly ash and coal load in ball mill as examples, we emphatically analyze the current status, modeling method of their soft ? sensing and the secondary variable selection in the soft ? sensing ; and also summarize some other thermal parameter soft ? sensing techniques in our country, which is a guidance for the development of the thermal parameter soft ? sensing technique in power plant, and has some value for the optimization of thermal control systems

    以煙氣含氧量、飛灰含炭量、球磨機荷為例,著重分析和總結了其測量的現狀、軟測量建模法和變量的選取,並概括了國內現有的其他熱工參數軟測量技術,對火電廠熱工參數軟測量技術的發展具有一定的指導意義,對熱工控制系統的優化具有一定的參考價值。
  16. As to the crosslinking polyethylene, organic montmorillonite was further modified by attach the monomers on the surface and interlayer of montmorillonite in the way of mixing at a high speed. after the former procedure, the crosslinking polyethylene / montmorillonite nanocomposites had been easily obtained by melt mixing crosslinking polyethylene and the modified montmorillonite directly

    而對于交聯聚乙烯,則首先通過高速混合的式將小分子單體和引發劑載到有機蒙脫土的表面和層間,再將制得的改性蒙脫土同交聯聚乙烯直接熔融復合,成功的制備了交聯聚乙烯蒙脫土納米復合材料。
  17. This paper mainly discusses rational blossoming in computer aided geometry design. specifically, we apply the fact that the binomial theorem is valid for negative integer and fractional exponents, introduce the rational bernstein bases and fractional bernstein bases, discuss the properties of rb curves and poisson curves, give the rational blossom and analytic blossom

    本文主要討論了cagd中的有理blossoming法,具體來說,利用指數為整數、分數的項式定理,引入了nbernstein基函數、分數bernstein基函數,討論了rb曲線、 poisson曲線的性質,並且介紹了有理blossom與解析blossom
  18. In the second quantized theory, however, the negative energies lead to the prediction of antiparticles ( positrons ) which is regarded as one of the greatest successes of the driac equation ( chapter 10 )

    然而,在量子化中,能量導致了存在反粒子(正電子)的預言而被看作狄拉克程的最偉大成就之一(第10章) 。
  19. The parameter is selected according to needing. according to analyzing, the power is cubic proportion to the speed, it is great remarkable to reduce the speed for releasing the load of suck - wind machine contrast to adjust the opening degree of baffle small

    經分析得知,功率與速度的成正比,因此引風機低荷運行通過降速來實現,同關小風機入口擋板來實現相比節能效果是十分顯著的。
  20. This article has discussed the control problem in a distribution substation and on the distribution line respectively. reactive power / voltage control in a substation using general approach usually results in the voltage of the second side being too close to the boundary. it will make the ability of enduring the variation of load in a system decrease a lot and become the threat of the system

    本文分別對配電系統中的變電站及配電線路的無功電壓優化控制問題進行了研究,採用常規法進行變電站電壓無功控制時,往往使側電壓過于接近邊界而導致系統承受荷波動的能力大大下降,成為系統安全運行的隱患。
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