模型周圍率 的英文怎麼說

中文拼音 [móxíngzhōuwéilǜ]
模型周圍率 英文
mold turn-over
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 周 : Ⅰ名詞1 （圈子; 周圍） circumference; periphery; circuit 2 （星期） week 3 [電學] （周波的簡稱） c...
  • 圍 : Ⅰ動詞1 （四周攔擋起來 使裡外不通; 環繞） enclose; surround; corral 2 （繞; 裹） wrap Ⅱ名詞1 （四...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 模型 : 1 （仿製實物） model; pattern 2 （制砂型的工具） mould; pattern3 （模子） model set; mould patter...
  1. To the influence of the plateau terrain, the impact of the elevation and the roughness of terrain to every energy component out and incoming are study, and basing the soil spectrum model proposed above, a new radiative transfer model of terrain area was put forwarded in which the soil water content, lai, terrain roughness and elevation were considered synchronously, and incoming scatter light was integral with the solid angle of semi - globe space defined by the slope of the pixel, so scattering lights of terrain and the sky are properly considered, but the operation is still within the acceptable range

    地形與反射率的關系是本文研究的一個重點。本文對崎嶇山地象元的各入射光和反（散）射光分量進行了深入分析，在所提出的濕潤土壤光譜模型和植被冠層模型的基礎之上進一步提出了新的適合青藏高原的山地輻射傳輸模型。該模型同時考慮了土壤含水量、植被覆蓋（ lai ） 、地形起伏和海拔高度的影響，並以象元坡面定義的半球空間立體角對環境入射光進行積分，使周圍地形和天空散射光均得到適當考慮，計算量又在可接受范圍內。
  2. Then we define criterions including a series of software practice process and method and tools, which are also fit most of home software corporation to application software exploration and fit them to improve their software exploration engineering management before passing evaluation of cmm. the criterions we defined using a series normative process and document to engineer software exploration, which include " project management criterion ", " configuration management criterion ", " software test criterion ", " document writing criterion ", " software exploration and maintenance criterion ", ' software life cycle guide ", etc. " project management criterion " defines area and principle of software research management, which is practiced to manage the people, technology, resources, software, process and so on to improve efficiency and to ensure quality and increase income

    《項目管理規程》定義軟體研發管理的范圍、原則，通過實施該規程來對項目中的人員、技術、資源、軟體、過程等進行全方位的管理，一西南石油學院碩卜學位畢業論文以達到提高效率、保證質量、降低消耗、增加收益的最終目的; 《配置管理規程》 ，通過實施該規程對項目開發過程中的所有資源進行控制; 《軟體測試規程》定義對軟體系統測試所用工具、過程和責任: 《文檔編制規程》提供滿足國家《計算機軟體文檔編制規范gb8567 》標準的各種文檔模板來建立統一的文檔編制規范; 《軟體開發和維護規程》定義了軟體開發過程以及採取的方法和工具; 《軟體生命周期指南》 ，根據軟體項目管理的經驗，將典型軟體過程形成軟體過程模型，用於指導以後軟體周期的選擇; 《年度公司規劃》 ，對需要公司總體安排的資源統一調度的過程。
  3. Its operation frequency is 1. 38mhz, with an integration of a power mosfet whose breakdown voltage is up to 50v. the allowable input voltage ranges from 2. 7v to 5. 5v and its output voltage can be programmed between - 2v and - 15v, additionally, the output current is in a 200ma range in typical application. to avoid the poor efficiency of the pwm control scheme at light load, a skip - cycle - mode operation is introduced that allows system ’ s efficient operation at the light load

    該電路工作頻率為1 . 38mhz ，內部集成耐壓50v的功率mosfet ，輸入電壓范圍2 . 7v 5 . 5v ，輸出電壓可在- 2v - 15v間連續可調，典型工作條件下輸出電流在200ma之內;同時，在輕負載下提供跳周期模式，具有很高的待機效率。
  4. Nowadays the research on the performances of security investment funds in china is mainly concerned with two aspects. the one is the feasibility of the theoretical model of performances and the simple computation by means of indicator formulation, which can be used to compute certain performance indicators, such as average profit rate per week, p coefficient, johnson coefficient, sharp ratio, var, average profit rate per week / var and etc. the other one is the research on the degree to which funds holdings are concentrated and research on the tendency of industry selection in the portfolios of funds managers. every part of market is trying to connect the portfolios selection of funds managers with the mar ket focuses and development directions, hoping that it can lead to the conversion and maturity of the ideas of market investment

    目前，對于中國證券投資基金績效的研究與評估，基本上圍繞著兩個方面，即績效理論模型的可應用性探討或簡單的指標公式套算，計算某些績效指標，如平均周收益率，貝塔系數，詹森系數，特雷諾系數，夏普系數， var和平均周收益率var等幾項指標；和對基金持股集中度的研究，以及由此引伸的對基金經理的投資組合中的行業選擇傾向的研究，市場各方一直在試圖將基金經理的投資組合選擇與市場熱點和發展方向連接起來，並希望籍此引導市場投資理念的轉變與成熟。
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