群聚束 的英文怎麼說

中文拼音 [qúnshù]
群聚束 英文
buncher beam
  • : Ⅰ名詞(聚在一起的人或物) crowd; group Ⅱ量詞(用於成群的人或物) group; herd; flock
  • : 動詞(聚集; 聚積) assemble; gather; get together
  • : Ⅰ動詞1 (捆; 系) bind; tie 2 (控制; 約束)control; restrain Ⅱ量詞(用於捆在一起的東西) bundle;...
  • 群聚 : adoption societies
  1. Space charge wave revision to the electron beam bunching caused by the radiation wave in the klystron

    在速調管中空間電荷波對輻射波引起的電子的修正
  2. Early in the morning of october 15, 1997, standing in the dark on the edge of an alligator - infested inlet near cape canaveral, fla., i watched with thousands of others as a tiny flame appeared beneath a rocket illuminated by floodlights on a launchpad several miles away

    1997年10月15日清晨,天色猶暗,我站在美國弗羅里達州卡那維爾角附近一個鱷魚居的海口邊緣,和好幾千人一起看著數英裡外的發射臺上,被光燈照亮的火箭下射出一細小的火焰。
  3. Mourners gather every august 6 in remembrance of those who died in the bombing of hiroshima at the end of world war ii

    每年的8月6日,哀悼的人在此追思在二戰結前夕廣島遭原子彈轟炸時喪生的人們。
  4. The basic principle, main properties, typical parameters, technical characteristics and general situation of klystron are introduced. the electron beam prebunching in the modulated cavity and shift tube of relativistic klystron amplifer ( rka ) is studied analytically, a self - consistent equation of radiation generated by the prebunched electron beam in the radiation cavity is derived using the field method of particle ? wave interaction instead of the electrical circuit method, and in terms of it, the gain in the linear regime calculated, a field analysis method is proposed. the theory analysis shows that the characteristic parameters, such as resonance frequency, real part of gap - impedance, external quality fadtor in all kinds of klystron output circuits including single - beam, multi - beam, single - gap, multi - gap, single - beammulti - gap, multi - beam multi - gap klystron output circuit, can be calculated by the field analysis method

    本文系統的介紹了速調管的工作原理、主要特點、發展概況、主要性能指標和技術特點,解析的研究了電子在相對論速調管放大器的調制腔和漂移管中的預;用粒子波互作用的場方法導出了在輻射腔中預電子產生輻射的自洽方程,同時對線性區的增益進行了計算。理論分析表明,場分析法可用於計算單注單間隙、多注多間隙、單注多間隙和多注多間隙速調管輸出迴路的諧振頻率、間隙阻抗實部和外觀品質因數等特性參數。
  5. Space - charge wave physics relevant to modulation of intense relativistic electron beams

    強流相對論電子的空間電荷波理論分析
  6. The river, glad of new strength and rejoicing in the unison of all its waters, murmured to the shores in music, telling of its release from icy fetters, its swift flight from the snow - clad mountains, and the mighty work to which it was hurrying - - - the wheels of many mills to be turned, and great ships to be floated to the sea

    河水也因為增添了新的力量而感到高興,它沉浸在水流重的歡樂之中,不斷以美好的音調向河岸喃喃絮語,敘述著自己是怎麼掙脫冰雪的縛,怎麼從積雪覆蓋的山奔騰跑到這里,以及它匆忙前往擔負的重大工作- - -無數水車的輪子等待著它去推動,巨大的船隻等待著它去送往海上。
  7. The distribution and structure of the allelic polymorphism data are analyzed and it is pointed out that the distribution of allelic polymorphism data reveals the characteristic of closed data ( also named as compositional data or data of constant sum ) it is interpreted that the correlation structure of the allelic polymorphism data contains null correlations introduced by " closure " and the statistical distribution of the data is not normal because of its constant row sum, which resulted in great difficulties in analyzing the data with traditional multiple linear statistical methods such as principal component analysis, factor analysis, cluster analysis and canonical correlation analysis

    摘要長期以來,對于多維基因多態性數據的多元統計分析,如計算遺傳距離時所用的類分析、分析體遺傳結構時所用的主成分分析、因子分析和典型相關分析等,一直應用為無約條件數據而設計的經典多元線性分析方法,並沒有注意基因多態性數據的「閉合效應」所帶來的問題。
  8. Based on the group - theoretical structure for the density - dependent multi - photon jaynes - cummings model, we have constructed the dressed su ( 2 ) coherent state. the atom and field squeezing and the anti - bunching effect for the system evolving from the dressed su ( 2 ) coherent state have been studied. in conclusion, we have discovered some new field and atomic squeezing in different systems, proposed a new kind of quantum state and discussed photon anti - bunching effect, sub - poissonian statistics distribution

    5 .基於密度相關的多光子j那mes一c ~ gs模型的結構,定義了密度相關的多光子jaynes一c ~ gs模型的修飾su ( 2 )相干態,並研究了系統以修飾su ( 2 )相干態作為初態的原子和光場的壓縮,光子的反等效應。
  9. So, you will stop by the coast to visit these lovely elephant seals playing or resting on the sandy shores. come back to bay area in the afternoon

    游畢前往海岸區觀賞數以千計的海象elephant seals在沙灘上一起休息或嬉戲的奇觀,稍後北返灣區,全程結
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