空匣 的英文怎麼說
中文拼音 [kōngxiá]
空匣
英文
empty boxes-
It has been established the existence of a few pathways controlling flowering of plants in genetic research of flowering of arabidopsis thaliana and antirrhinum majus. many genes related to flowering have been identified and cloned, but the regulation mechanism of gene ' s expression is still unclear
通過模式植物擬南芥和金魚草開花機理的研究，現在已經明確植物的開花途徑有多條，並識別和分離了許多與開花有關的基因，但這些基因如何在植物生長發育過程中進行特定時空的表達及其調控一直是科學家研究的一個黑匣子。At present carbon fiber - reinforced composite is developed to use in some aero - engine components in our country. using the numerical method and fatigue damage theory, the buckling and fatigue on the composite materials and composites case are studied for aero - engine design
本文從實際工程背景出發，利用板殼理論和現代數值分析技術的研究成果，結合疲勞累積損傷理論，對航空發動機用的復合材料及其機匣結構的屈曲與疲勞壽命問題開展了較為系統深入的研究。The precise processing of the testing data is a crucial technique of this project, which is essential for reconstructing the flying behavior of tsp. the main tasks of this paper are ameliorating the black box sub - system and developing interface and transacting software of the ground laser radar
對穩態掃描參數的測試數據進行精確處理，就能夠直觀再現末敏彈空中姿態；本文的工作就是完善、改進彈上黑匣子數據處理系統和開發地面激光雷達的介面和處理軟體。The soldiers had almost finished reloading ; the metal ramrods flashed all at once in the sunshine as they were drawn from the barrels, turned in the air, and thrust into their sockets
士兵這時也都幾乎重新換好彈匣；金屬推彈桿從槍管中抽出來、在空中轉動並插入介面時在陽光下顯得閃閃發光。And the finite element method ( fem ) was used to simulate the stress and deformation of the outer casing and the bearing chock. on the basis of the experiments and fem analysis, the strength and fatigue lifetime, the interaction of creep and fatigue lifetime, the creep lifetime of outer casing and bearing chock have been analyzed, at the end of trail, sem analyses of failure section has been conducted
同時對航空發動機燃氣渦輪外機匣和軸承座進行了有限元模擬計算，得到外機匣和軸承座的焊接處的強度和變形情況的模擬結果。根據試驗數據和有限元的計算結果，對發動機燃燒室外機匣和軸承座兩種結構（包含焊縫）進行靜強度分析、疲勞壽命分析、蠕變壽命分析、蠕變疲勞交互作用壽命分析以及斷口的金相分析。Aim at the status of design of aeroengine casing parts almost without using parametric methods, an improved method is proposed which can deal with the relationship of associated dimension of geometry elements in the parts. a new method can embed the geometry elements in a sketch into another sketch so that the model of the casing parts is parametric and can be modified conveniently
針對航空企業設計機匣零件參數化程度不高的現狀，提出了改進方法，注重機匣零件相關尺寸之間的關系處理，提出了草圖特徵嵌入草圖的新方法，提高了參數化程度，使得模型具有較好的可修改性。Transient dynamical analysis of aero - engine combustor outer casing
航空發動機燃燒室外機匣瞬態動力分析Composite laminate shells have been applied more and more widely in aerospace structures. in order to increase thrust to weight ratio and improve the comprehensive performance of airplane, optimization design must be carried out. this thesis brings forward utilizing the method of aga - fem, which combines adaptive genetic algorithm ( aga ) and finite element method ( fem ), to optimize fibre - reinforced composite shells
本文提出採用自適應遺傳演算法（ adaptivegeneticalgorithm ）和有限元方法（ finiteelementmethod ， fem ）結合即aga - fem方法進行纖維增強型復合材料層合殼結構的優化設計，並對某航空發動機復合材料機匣進行優化設計分析，取得了很好的效果。The counter - rotating dual - rotor system in aeroengines can reduce the influence of rotors ' gyroscopic moments on aircrafts, cut down the torque of cases and improve the flexibility of airplanes
摘要航空發動機採用反向旋轉的雙轉子系統，有助於減小轉子整體陀螺力矩對飛機的影響，降低機匣負荷，提高飛機機動性能。The combustion chamber outer casing and bearing chock are important parts of aero - engine. the fatigue failure of them is the most concerning problem in engineering. then, in this paper the strength and fatigue life of the outer casing and bearing chock including welding line have been analyzed
燃燒室外機匣和軸承座是航空發動機的兩種重要構件，其疲勞失效問題是工程界普遍關心的問題，基於此，本文對該兩種結構（包含焊縫）的強度和壽命進行了研究分析。( 3 ) using aga - fem to minimum the mass of an aeroengine case, the results indicate that the method we improved can be adopted to optimization of engine case and other engineering components
（ 3 ）將本文方法應用於某航空發動機機匣簡化結構的優化分析。分析表明，本文發展的方法對于機匣等工程構件有較好的適應能力。分享友人