first principle of dynamics 中文意思是什麼

first principle of dynamics 解釋
動力學第一定律
  • first : adj 1 最初的，最早的。2 最上等的，第一流的。3 基本的，概要的。4 高音（調）的。n 1 最初，第一；第...
  • principle : n. 1. 原理，原則。2. 主義；政策；〈常 pl. 〉道義；節操。3. 本質，本體，根源；本原，源泉。4. 本性，本能；天然的性能；天賦的才能；動因，素因。5. 【化學】素，要素；精。
  • of : OF ＝Old French 古法語。
  • dynamics : n. pl. 1. 〈用作 sing. 〉 力學；動力學。2. 動力，原動力。3. 動態。4. 【音樂】力度強弱法。
  1. In the second chapter, the fluid mechanics principle of vortex flowmeter at first was introduced. the classical theory about vortex flowmeter and the method of computational fluid dynamics about flow around body were expanded on, and the model of the single bluff body and the dual bluff body vortex flowmeter were constructed. and then, fvm - finite volume method - analysis software fluent was applied to analyze the flow phenomenon of flow over single bluff body or dual bluff body

    然後通過大量實驗和理論分析給出雙鈍體渦街流量計的設計準則：當管徑為d ，鈍體形狀為三角形，則鈍體設計參數為：銳邊寬度= 0 . 26d ，高度= 0 . 34d ，鈍體之間的距離= 1 . 2d （即當兩鈍體寬度相等且鈍體距離等於單鈍體兩列旋渦之間的距離） 。
  2. In this paper, molecular dynamics simulation is carried on the nanometric cutting of defect - free monocrystalline silicon. based on simulations, a reasonable explanation is given to the forming mechanism of chip and surface machined in the cutting process of monocrystalline silicon. moreover, the feasibility of brittle - ductile transition of monocrystalline silion is studied with the method of first principle stress

    對內部無缺陷的單晶硅的納米切削過程進行了分子動力學模擬.通過模擬結果，對單晶硅納米切削中的切屑形成過程和加工表面的形成過程做出了合理的解釋.並用第一原理應力計算方法對單晶硅納米切削過程中的脆塑轉變的可行性進行了研究
  3. Make use of the district economics, ecosystem economics, and system dynamics principle, and provided the way for establishing the all - around theories of the big ecosystem structure in space of the small town environment. because the study of the small town land using is placed in the stage in entry - level, there are some standpoints in the article which is needed to test in practice. in order to resolve the land policy problems in small town, we should adopt some main reformational measures and countermeasures, including : the first, enhancing the land planning policy ; the second, consummating the land management policy ; the third, scooping out well the current potentials in the building land of small town ; the fourth, promoting the harm

    為了解決小城鎮的土地政策問題，認為應採取的主要改革措施和對策有:第一，強化土地利用規劃政策，優化土地利用結構，促進小城鎮用地結構的協調發展;第二，完善土地管理政策，促進小城鎮健康有序發展;第三，充分挖掘現有小城鎮建設用地潛力，協調新城區開發與舊城區改造的關系;第四，利用景觀生態原理，設計小城鎮景觀，促進小城鎮土地開發與環境的協調:第五，發揮地價杠桿的調節作用，促進土地的區位配置合理和集約利用;第六，進行農地流轉政策制度創新，逐步割斷轉移勞動力與農地的「臍帶」 ;第七，進行小城鎮土地投資政策體制創新，構建與完善多元化的投資機制推進小城鎮建設;第八，進行小城鎮建設用地政策的制度創新，有效保護和利
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