time projectile 中文意思是什麼

time projectile 解釋
空炸炮彈
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  • projectile : n. 1. 拋射體。2. 射彈。3. 導彈，飛彈，火箭。adj. 1. 拋射的，發射的；射彈的。2. 可拋射的；推進的。3. 【動物；動物學】（觸角等）能伸出的。
  1. Abstract : this paper introduces the principles of doppler radar signal processing method in the modulation. it provides the processing method for projectile tracer time, the burst time, rocket engine working time, projectile spin and flight attitude from signal of doppler radar

    文摘:介紹了測速雷達調制域彈道信息處理方法的工作原理，詳細論述了從測速雷達信號中處理彈丸曳光時間、底排燃燒工作時間、火箭發動機工作時間、彈丸旋轉速度、飛行姿態角和擺動周期等彈道信息的方法。
  2. The interior temperature distribution and ablation model of projectile wing is established from general transmitting heat differential equation ; at the same time, the heat flow density and pressure distribution model of projectile wing is also established

    從一般形式的導熱微分方程出發，逐步建立了彈翼內部溫度分佈和燒蝕的數學計算模型；與此同時，建立了彈翼表面的熱流密度和壓力分佈的數學模型。
  3. The dual - time stepping method proposed by a. jameson is applied to improve time precision for unsteady flowfield computation. the three dimensional grid for projectile with lateral jets, especially body - fitted for lateral jets exit, is generated by improved traditional methods with projection and zonal method

    在改進傳統網格生成方法的基礎上，結合投影映射、分區拼接技術生成了彈丸側噴流場單一區域三維計算網格，在側噴流噴口邊界實現了網格貼體化。
  4. When targets penetrated by flat - ended projectile, shear deformation along the penetration direction appears, at the same time compressive deformation also appears in the material that is in front of the projectile. the compressive deformation begins at the back surface of the target and spreads inward

    鈍頭彈侵徹下，側壁材料發生軸向剪切變形，同時，彈體前方的材料發生壓縮變形，壓縮變形首先在靶板背表面開始，而後自背表面向靶內傳播。
  5. Effect of structural paramenters of projectile and gun barrel on self - destroying time accuracy of fuze ' s centrifugal steel ball device

    彈丸及身管結構參量對引信離心鋼珠自毀時間精度的影響
  6. By measuring pressure induced by dynamiting which located various positions of the circular shell, the localizational effect of impact force on the circular shell is disclosed. also, pvdf piezofilms are used to determine accurate time while projectile contacting target, accurate time while two interfaces of the target contacting at a initial distance of 5, and the contacting pressure between the two interfaces when the projectile is in 500m / s to looom / s. experimental results, which are consonant with computer simulation, supply support to engineering

    通過對化爆模擬加載試驗中柱殼不同角度壓力的監測，揭示了化爆模擬產生的壓力局域化效應，為進一步模擬設計提出研究的方向；採用pvdf壓電薄膜來監測彈靶碰撞的時刻、細小間隙的閉合時間以及由此產生的壓力變化，通過對pvdf壓力計測試結果分析以及和數值模擬結果的比較，獲得規律性的認識，為進一步的應用提供了技術支持。
  7. With attack angle, two types of unsteady flowfield over high - speed spinning projectile without and with lateral jets are successfully simulated respectively by dual - time stepping method. the two results of flowfield show unsteady and periodically after one period of spinning

    在高速旋轉彈丸底噴流-側噴流共同干擾流場的計算中，發現高速旋轉對底噴流動的影響沒有對側噴流動的明顯。
  8. ? by comparing the experimental data with the modeling results, it was found that the he in the projectile produces reaction after considerably long time. and the expansion velocity of the shell is about one hundred meters per second, far below the velocity driven by detonation ( about 2000m / s ). ? the post - test recovered fragments prove that the reaction violence remains on low level

    ?通過試驗結果和數值模擬的殼體邊界和徑向膨脹速度的對比分析，發現帶炸藥彈體在以120m s左右的速度撞擊鋼靶后，經歷了相當長時間后才產生反應，且此時殼體的膨脹速度僅在百米每秒的水平，遠低於爆轟驅動下能達到2000m s左右的速度。
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