核裂變原子 的英文怎麼說
中文拼音 [hélièbiànyuánzi]
核裂變原子
英文
nuclear fission-
And more hale than ever are the four major national laboratories that discovered atomic fission, the much more destructive nuclear fusion and the means to develop them into history ' s most dangerous weapons
而且比過去更好的是四所主要國家實驗室發現原子的裂變,更大毀滅性的核子融合和方法發展它們進入最危險的武器之內歷史時期。Nuclear fission would have been a dramatic discovery at any time.
在任何時候,原子核裂變都會成為引人注目的發現。In 1945, all mankind came to know and fear the nucleus when the fission of 1 kg of uranium devastated hiroshima.
1945年,當1公斤的鈾裂變使廣島成為廢墟時,全人類開始知道原子核並對它產生了恐懼。Nuclear fission has contributed to our society some new phrases-- "critical mass" and "critical size".
原子核裂變給我們的社會帶來了一些新詞匯--「臨界質量」和「臨界大小」。Many of the heaviest nuclei can be induced to break up into two fragments of intermediate size, a process called nuclear fission.
許多最重要的原子核能被誘發分裂為兩塊大小適中的碎片,這一過程稱為核裂變。The mice showed also ageing - associated decline in oocyte quality, as indicated by increased frequency of premature chromatid separation, spindle disruption and / or chromosome misalignments in mii oocytes of aged mice. the gv oocytes from aged mice normally matured in vitro. the percentages of pronuclear - stage embryos, 2 - cell embryos and blastocyst derived from mii oocytes of aged mice by in vitro fertilization ( ivf ) were comparable with ones of young mice, but pronuclei formed 1 h later in aged mice than in young mice
老齡小鼠gv期卵母細胞能正常體外成熟;老齡小鼠m期卵母細胞經體外受精后形成原核期胚、 2 -細胞期胚和囊胚的比率與年輕小鼠比較無顯著差異,但原核形成時間延遲1小時;在老齡小鼠卵母細胞,注射牛精子抽提物或sr ~ ( 2 + )處理時所誘發的ca ~ ( 2 + )振蕩以及在減數分裂成熟及早期胚胎中的pkc分佈未發生改變。Third, other nuclear quanlities ( such as fission caused by slow neutron, odd - even difference of frequency of bandcrossing etc ) were researched briefly, no other than pairing correlation, their results represented a series of odd - even differences
( 3 )對原子核的其它性質(如慢中子引起的裂變,帶交叉頻率的奇偶差等)的奇偶差也作了簡要的研究,正是由於對關聯的存在,其他性質也表現出一系列的奇偶差。Nuclear fission has contributed to our society some new phrases - - " critical mass " and " critical size "
原子核裂變給我們的社會帶來了一些新詞匯- - 「臨界質量」和「臨界大小」 。The bisonc burnup library is replaced to facilitate the computation of the burnup process with complicated burnup chains. we have made and evaluated the new library ( hendl ) which contains 139 kinds of nuclides with 175 groups for neutron and 42 groups for gamma, 15 kinds of neutron reactions and p0 - p5 expansion. the revised code which we call bus - id is more adaptable to the computation of hybrid reactor for its fuel breeding and the transmutation of the hlw
並且在一維輸運及燃耗計算程序bisonc的基礎上,提出用新的數據庫( hendl )代替原有的bisonc數據庫, hendl庫考慮了更加全面的燃耗過程和多種燃料循環方式,通過修正讀入的核截面數據庫中的參數,考慮共振自屏效應,製作並且評估了新的含有139種核素、多種反應截面、 175群中子42群光子、 p _ 0 - p _ 5展開的中子反應數據庫,開發出新的程序bus - 1d ,使得更能適應聚變?裂變混合堆的燃料增殖、高放長壽命核廢料( hlw )的嬗變等計算的要求。Fission and fusion, the sources of large-scale nuclear energy, deserve more than passing notice in a modern survey of physics.
裂變和聚變是大規模原子核能之源,在物理學的現代概觀中值得注意而不是予以忽視。In addition to splitting the nucleus into two halves, the process releases two or more neutrons and a large amount of energy in the form of heat. the released neutrons in turn hit more uranium nuclei and release more neutrons to produce a chain reaction
核裂變過程除了把原子核分裂成兩份外,亦會釋放大量的熱能及同時放出兩個或以上中子,以撞擊更多鈾原子核,再釋放更多中子,產生鏈式裂變反應。Cortical granule ( cg ) is an unique type organelle of mammalian oocyte. during the maturation of oocyte, cgs shows a specific change in distribution. the generally accepted indicator of final cytoplasmic maturation is the line underneath oocyte membrane constituted by cgs
卵母細胞在成熟和受精過程中,細胞骨架發生一系列明顯的變化,微管是一種重要的細胞骨架成分,對于哺乳動物卵母細胞減數分裂的完成、精子的運動、雌雄原核的結合是必不可少的。The recent studies in our group on the properties of nuclei at extreme conditions, i. e. nuclei at high densities and high temperatures, their possible liquid - gas phase transitions and the multifragmentation are reviewed
摘要對近年來本小組所研究的極端條件下原子核,即高溫高密原子核性質及其可能出現的液汽相變和多重碎裂等進行了綜述。Nuclear fission is initiated when the nucleus of a uranium atom is hit by a neutron and split into two halves
鈾原子核被中子撞擊后,會分裂成兩份,產生核裂變。The high energy neutrons released by fission travel at very high speeds fast neutrons and must be slowed down to increase its probability of hitting more uranium atoms and in turn induce more fission in the reactor
核裂變所釋放的高能量中子移動速度極高快中子,因此必須透過減速,以增加其撞擊鈾原子的機會,同時引發更多核裂變。The high energy neutrons released by fission travel at very high speeds ( fast neutrons ) and must be slowed down to increase its probability of hitting more uranium atoms and in turn induce more fission in the reactor
核裂變所釋放的高能量中子移動速度極高(快中子) ,因此必須透過減速,以增加其撞擊鈾原子的機會,同時引發更多核裂變。分享友人