expansion parameter 中文意思是什麼

expansion parameter 解釋
展開參數
  • expansion : n 1 張開，伸展。2 擴大；擴建；展開；發展。3 廣袤，遼闊。4 擴張物，擴大部分。5 （講題等的）詳述，...
  • parameter : n. 1. 【數學】參數，變數；參詞；參項。2. 【物理學】參量；（結晶體的）標軸。3. 〈廢語〉【天文學】通徑。vt. -ize 使參數化。
  1. Suction gas pressure goes up as the compressor run at the lower speed in the lower burthen, and this is beneficial to lower systems energy - consume. when the system is controlled by wvf, the discharge change of the evaporator is not linear ; the electronic expansion valve is adopted to regulate the system superheat degree, and the controlled object is parameter time varying, accordingly, the time varying controller should be adopted

    在負荷較小時，壓縮機採用低速運轉，吸氣壓力升高，這對系統降低能耗是有利的；變頻控制時，蒸發器製冷劑流量的變化並非線性；系統中採用電子膨脹閥進行過熱度控制，被控對象具有參數時變的特性，相應地宜採用變結構的控制器。
  2. In this paper, the method of small parameter is used to calculate the multipolar expansion of gravitational radiation in classical situation, and the general expression on multipolar gravitational radiation is obtained. then the angle distribution characters in an arbitrary direction are given. this expansion method can avoid the higher order tensors when dealing with the gravitational radiation higher than quadrupole

    本文採用小參數法作為經典引力輻射的研究方法對引力輻射作多極展開，得到各極引力輻射的一般表達式，並給出了沿任一方向引力輻射的角分佈的嚴格證明，這種展開法在處理四極以上的高階引力輻射時卻可以不涉及更高階的張量計算。
  3. In this paper, dynamic stability of parametrically excited flexible cam - follower system on the weakly nonlinear condition is investigated by using the combination of both the method of multiple scales and the technique of fourier series expansion. the equations of approximate transition curves in the plane of the dimensionless frequency and excitation ( amplitude ) parameter that separate stable from unstable solution are derived

    隨后，本文採用多尺度法並結合fourier級數展開，分析了不同的凸輪從動件運動規律和不同的凸輪的升程、停程以及回程的時間分配規律下，無間隙的周期時變凸輪系統模型的穩定性，獲得了各種規律下的凸輪系統的穩定區間圖。
  4. The results demonstrate that the theory predicted values of compression, bulk modulus, linear expansion, and thermal expansive coefficient of compressed solids are very agreement with the corresponding experimental data. in summary, the error with respect to theory prediction and its causes are pro bably analyzed in detail. the discussion suggests that the function of the phenomenological short - distance repulsive force constant a ( v ) and approximation for anderson - griineisen parameter 5t ( v ) proposed in this paper are valid and applicable in high pressures ( up to loogpa ) and high temperatures ( from debye temperature 0d to melting temperature tm ) for many types of solids

    在本文最後一節，為了驗證固體在等壓過程中anderson grhneisen參量乓與體積膨脹的唯象假設：乓久w兀的有效性，及由此假設而推導出來的等壓態方程的廣泛應用性，本論文主要針對十六種堿金屬鹵化物、三種堿性氧化物、三種硅酸鹽礦物質的線膨脹八n 、體積熱膨脹v vo （ n 、熱膨脹系數a （ n 、體積彈性模量肘d等隨溫度的變化作了理論上的預測，且與相應的實驗數據作了比較與分析
  5. Is not only a parameter for measuring expansion of the universe, it can also be used to determine the age and the size of the universe, amount of dark matters, numbers of hadrons and abundance of light elements in the universe and even the structure of the early universe, and so forth

    的一個參數，而且還可以用來計算宇宙年宇宙大小宇宙中黑暗物質的數量重子數目輕元素豐度甚至早期宇宙形成的結構等等。
  6. This article discusses how to establish the standard gallerys in cad, how to establish the basic parameter database for the size of each spare parts and some calculating formulas relating to component size in vb. through establishing graph root objects and accroding to certain regulation, it transfers painting orders sealed in the cad and paints the production diagram paper of bellows expansion joints, and through establishing to printing environment to completes the print of diagram paper

    本文討論了如何在cad中建立標準圖庫，如何在vb中建立各零件尺寸基本參數數據庫和零件尺寸相互關聯的計算公式，以及在vb中通過建立圖形根對象，按一定規律調用封裝在cad中的繪圖命令，實現對波紋膨脹節生產圖紙的繪制。
  7. Based on this simulation model, researched the affection to output performance and sensitivity made by the design parameter. analyzing the effect of the expansion ratio to the design of the release devices

    利用模擬模型，研究了設計參數對輸出性能的影響和敏感度，並分析了膨脹比在分離裝置設計中的作用。
  8. The innovations of this thesis are as the follows : 1 ) it is analyzed that the lower - order jacobi - anger expansion model for an incoherently distributed source has better accuracy performance than some other approximate source models such as space frequency model, two - point source model, and low - rank approximate model. using the parametric decoupling property of the ja - based model, a novel angular parameter estimator is proposed, which is very robust in case of large angular spreading

    本文從這三個方面開展了空間分佈源波達方向估計研究，創新點包括： 1 ）分析了低階jacobi - anger級數展開近似模型的誤差性能；利用該近似模型的參數解耦特性，提出了一種新的波達方向估計器，在大角度擴展條件下，該估計器表現非常穩健。
  9. Based on researching the relation of the parameters of bohr - mottelson rotational spectra formula from two - parameter harris formula, in this thesis three - parameter harris formula was used and a new ralation of the parameters of bohr - mottelson rotational spectra formula was brought forward. four - parameter i ( i + 1 ) expansion was used to calculate superdeformed ( sd ) bands of even - even nuclei in a ~ 60, 80, 130, 140, 150, 190 regions and normal deformed ( nd ) bands of nuclei in actinide and rare - earth, the relation of the parameters was discussed. comparatively, the new relation is consistent with experiment

    利用harris兩參數公式研究bohr - mottelson轉動譜公式參數之間的關系的墓礎上，改用harris三參數公式，並由此提出了bohr - mottelson轉動譜公式參數之間的新關系式，進而用i （ i + 1 ）四參數展開式計算了a 60 ， 80 ， 130 ， 140 ， 150 ， 190區超形變偶偶核的基帶和錒系和稀土區正常形變核基帶，討淪了參數之間的關系，發現新關系式與實驗較好地符合。
  10. With the shifted 1 / n expansion, the instantaneous solution of the laser model, i. e., the change of eigenvalues with the pump parameter is obtained

    應用平移1 / n展開方法，得到激光場瞬態解，即本徵值隨抽運參量的變化情況。
  11. Concentrative parameter model and non - homogeneous model of dynamic distribution parameter are respectively adopted in the compressor and the heat exchangers. a dynamic concentrative parameter model is adopted in the thermostatic expansion valve on the basis of the analysis of the characteristics of enclosure structure, the dynamic mathematics model is established through the simplification of boundary condition

    壓縮機採用集中參數模型；換熱器採用動態分佈參數的分相模型；熱力膨脹閥採用集中參數動態模型；通過對冷庫維護結構的特點分析，採用邊界條件簡化處理的方法，建立相應的動態參數數學模型。
  12. The heteroepitaxial growth of 3c - sic on si substrate not only unfurls the maturity of si process, but also incarnates the excellence of 3c - sic, so that it become for long researchful direction. due to the large lattice parameter mismatch ( ~ 20 % ) and the large thermal expansion coefficient mismatch ( ~ 8 % ), however, the 3c - sic / si study is very difficult

    然而，由於3c - sic與si之間存在較大的晶格失配度（約20 % ）和熱膨脹系數差異（約8 % ） ，因此， 3c - sic / si異質外延薄膜的制備非常困難，仍存在許多技術問題需要克服。
  13. By means of lumped parameter method a reciprocating compressor model and a thermostatic expansion valve model are set up

    採用穩態效率法建立了全封閉活塞式壓縮機的質t流t 、輸入功率的數學模型。
  14. With the expansion of reformation and opening policy, transportation trade in our country has developed very quickly. traffic is heavy and the load of vehicle is growing, which greatly exceeds the value of highway vehicle. so some roads have to be used over its design parameter and some bridges are damaged

    隨著我國改革開放的不斷深入，交通運輸業有了突飛猛進的發展，公路交通量和汽車載重量日益增加，遠遠超出了當年的設計計算值，致使公路橋梁遭到了不同程度的破壞，但仍在超負荷使用，改造和加固這些超限服役的橋梁迫在眉睫，如何找出一條既合理，又省錢，又不斷交（省時）的加固方案，已是公路建設者們的一道課題。
  15. In order to study the operation characteristics of hpacdhws, distributed parameter simulation models of the fin heat exchanger and the plate heat exchanger are built up. the compressor model is founded in map - based method, and the thermodynamics expansion value model is built up in force balance method. the dynamic system model is the efficient connection of all component models by laws of equalization of mass, momentum and energy

    為了研究hpacdhws的運行特性，本文利用分佈參數法分別建立了翅片管換熱器和板式換熱器的動態數學模型，採用圖形法和力平衡法分別建立了壓縮機和熱力膨脹閥的集總參數計算數學模型，並基於質量、動量和能量守恆定律等約束條件，建立了hpacdhws的動態模擬模型。
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