拋射物 的英文怎麼說

中文拼音 [pāoshèwù]
拋射物 英文
parabola
  • 拋 : 動詞1. （扔; 投擲） throw; toss; fling 2. （丟下; 拋棄） leave behind; cast aside; abandon
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 物 : 名詞1 （東西） thing; matter; object 2 （指自己以外的人或與己相對的環境） other people; the outsi...
  • 拋射 : cast拋射機 flinger; 拋射體 [物理學] projectile; missile
  1. Because of its extensive application and underdeveloped research level in our country, this paper establish the numerical model of blank cartridge ejecting device, the whole process from blank cartridge burning to eject missile is analyzed by classic interior ballistic theory and gas dynamics. several simulation examples are given, and the effect of different parameter structure on ejecting device is discussed

    鑒于這類系統在我國的廣泛應用與相對滯后的研究水平，本文針對三種類型五種型號的掛彈鉤建立了拋放彈彈射機構的數學物理計算模型，用經典內彈道和氣體動力學理論分析了火藥彈燃燒到彈射活塞完全推離懸掛物的整個過程。
  2. Visual carbon stars whose mid - infrared spectra are mainly dominated by photospheric continuum and show large excesses at 60um, represent a transition phase which follows an interruption of mass loss from the oxygen - rich phase and begins a new phase of the mass loss of carbon - rich material. excesses at 60um in these stars are the emission from the residual of oxygen - rich material

    光學碳星的中紅外能量主要來自光球，在60 m處存在超量發射，人們認為其演化階段處在拋射富氧物質終止和新的富碳拱星殼層形成之間，其60 m超量發射就是富氧物質的殘余效應。
  3. A parabolic concave mirror can converge parallel light rays to its focus, and also collimate light rays that pass through its focus

    拋物面凹鏡會把平行而來的光線聚集在一點焦點，亦會把源自焦點的光線平行向外反射。
  4. This and the x - ray spectrum, which exhibits a high concentration of iron atoms relative to oxygen and silicon, convincingly show that the ejecta are the remains of an exploded white dwarf star

    這幅圖連帶x射線光譜（顯示出了鐵相對氧與硅的高度集中）令人信服地說明，拋出的物質是爆發白矮星的殘余。
  5. The ejected mass then probably becomes the observed material of a supernova outburst.

    在這種情況下，拋射物質可能就成為一次超能量爆發中的觀測對象。
  6. Concave reflecting surfaces of spherical cap, paraboloid and hyperboloid of revolution are investigated with regard to the dependence of the levitation force on the section radius rb and curvature radius r ( or depth d ) of the reflector

    針對球面、旋轉拋物面和旋轉雙曲面三種形狀的凹面反射端，系統研究了懸浮力與反射端截面半徑r _ b和曲率半徑r （或深度d ）之間的本徵關系。
  7. Spherical aberration analysis of refraction imaging for paraboloid and sphere

    拋物面與球面折射成像的球差分析
  8. Cut paraboloid reflector

    截拋物面反射器
  9. The technical specification of radiation pattern envelope for paraboloid antenna used in microwave relay communication systems

    微波接力通信系統拋物面天線輻射圖包絡的技術要求
  10. Zheng, h. n., zhang, b. and wang, s., 1995, a mechanism for the formation of plasmoid - type cme in the solar corona, acta astron. sinica, 36, 341

    鄭惠南，張兵，王水， 1995 ，等離子體團型日冕物質拋射的形成機制，天文學報， 36 ， 341
  11. While carrying out the scheme, at first, the basic theory of antenna, array antenna and electromagnetic absorption, the performance parameter of antenna and parabolic antenna are deeply researched. in conformity, the characteristic and calculation of aperture field and near - to - far - field transformation for radiation pattern are detailed analyzed. second, the factors such as, the amount of the antenna elements, mutual coupling between each element, ground and the buildings on earth ' s surface, which affect the performance of array antennas ’ resultant field are stressed discussed

    在系統實現過程中，課題首先從天線、陣列天線，以及電磁場計算方法的基本理論著手，分析了天線與拋物面天線的各項性能參數，以及天線的口面場和近-遠區輻射場的特點和計算;進而，更加深入的討論和研究影響天線陣列合成場強的各項因素，包括系統所使用的天線單元個數對陣列合成場的影響、天線單元之間由於互耦造成的影響、傳播過程中地面和/或地面建築物的影響等。
  12. Based on the qps ionosphere model, the gradients model 、 quasi - cosine disturbed model and qps model with es layer are also introduced. then using the platform, the backscatter ionogram of these typical states are simulated, comparing with the real ionogram to find that they can match well, which proves the validity and practicability of the platform. the influence of the inputting parameters of these model and antenna patterns on the backscatter ionogram is also discussed in this paper

    本文在球形對稱準拋物電離層模型基礎上，分別引入了梯度模型、準餘弦擾動模型、包含es層的準拋物模型，然後利用該模擬平臺，對這幾種典型電離層狀態的返回散射電離圖進行了模擬，並與實測圖進行了比較，一致性很好，證明了該模擬平臺的有效性和實用性。
  13. Abstract : in the field of optical wireless links, concentrators that are designed by the tools of nonimaging optics can be used to collect the light radiation and are more compact and have higher collection efficiencies than imaging concentrators. hemispherical concentrators are studied by ray tracing, then for several normal nonimaging concentrators : hemispherical concentrators, compound parabolic concentrators ( cpc ), dielectric totally internally reflecting concentrators ( dtirc ), simultaneous multiple surfaces concentrators ( sms ) and inhomogeneous media concentrators ( poisson bracket ), the design methods and the performances e. g. the gain and the field of view ( fov ) are compared as well as the application suggestion

    文摘:在無線光通信領域，利用非成像光學設計的集中器能夠聚集光輻射能量，而且相對于成像性集中器具有更緊湊的結構和更高的增益.利用光線追跡法對半球形集中器的性質進行了分析與研究.對好幾種非成像集中器:半球形集中器，復合拋物線形集中器，介質內部全反射集中器，多表面集中器，多相介質集中器，從設計原理、增益和視場進行比較，並分析其應用場合
  14. Off - axis parabolic mirror

    離軸拋物面反射鏡
  15. The design of amorphous photonic material and photonic crystal devicements we design to make a reflecting mirror of cylinder paraboloid of an antenna by using amorphous photonic materials. we calculated the transmission of the mirror and the distribution of electric field by using multiple scattering method. the result shows that it can be used as a reflecting mirror of an antenna

    非晶光子材料和光子晶體器件的設計提出了用介質圓柱光子晶體作微波天線的柱拋物面反射鏡，用多重散射方法計算了反射鏡的透過譜，並模擬計算了天線的電場分佈，初步認為可以用非晶光子材料作微波天線的反射鏡。
  16. Solar activity, especially, coronal mass ejection ( cme ) during a large solar activity affected the space environment of human being and could be one of main reasons of the space disaster

    太陽活動密切地影響著日地空間環境和地球高空大氣結構，太陽耀斑爆發產生的日冕物質拋射（ cme ）是空間災害的主要原因之一。
  17. Wang, s., zheng, h. n. ， wang, x. h., 1997, magnetic reconnection and mechanism for the formation of coronal mass ejection in the coronal current sheets, research digest in memory of zhao jiuzhang, scientific press, beijing, 205

    王水，鄭惠南，王小虎， 1997 ，日冕電流片中的磁場重聯和日冕物質拋射的形成機制，趙九章紀念文集（葉篤正主編） ，科學技術出版社，北京， 205
  18. Other eyewitnesses depose that they - observed an incandescent object of enormous proportions hurtling through the atmosphere at a terrifying velocity in a trajectory directed south west by west

    其他目擊者還作證說，他們瞥見一顆發白熱光的龐然大物，以駭人的速度沿著拋射體的軌道朝西南偏西方向騰空而去。
  19. Dem l71 presents a textbook example of the double - shock structure expected to develop when a star explodes and ejects matter at high speeds into the surrounding interstellar gas

    Dem l71是雙激波結構的標準範例，人們認為其產生於恆星爆發並以高速向周圍星際氣體拋射物質的時候。
  20. After the process of matter ejection stellar body will continue collapsing into black hole if the mass of the nuclear - energy - exhausted star is more than 3 mq

    星體經過物質拋射后，核能耗盡的恆星質量超過3m _ ，則此星體將繼續坍縮成黑洞。
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