first nucleus 中文意思是什麼
first nucleus
解釋
初始晶核-
In dandelion ( taraxacum ), for example, the chromosomes of the megaspore mother cell remain in one cell after the first meiotic division, forming a restitution nucleus
例如在蒲公英中，在第一次減數分裂后，大孢子母細胞的染色體仍在一個細胞中，形成一個再組核。 -
Our previous studies confirmed that the central pathway of trigeminal proprioceptive sensation consists of four orders of neurons, and neurons from the first - to the fourth - order are located, respectively, in the mesencephalic trigeminal nucleus ( vme ), the dorsomedial part of the subnucleus oralis of the spinal trigeminal nucleus and its adjacent reticular formation ( vodm - lrf ), the " zone - shaped area " [ including the caudolateral part of the supratrigeminal nucleus ( vsup - cl ), the dorsomedial part of the principal sensory trigeminal nucleus ( vpdm ), the area ventral to the motor trigeminal nucleus ( avm ) and the area dorsal to the superior olivary nucleus ( ado ) ] and the contralateral ventral posteromedial nucleus ( vpm ) of the thalamus. because the pathway is a novel one, there has been little systematic morphological data available so far regarding the neurotransmitters involved in this pathway
該通路中第二、三級神經元所在地分別是三叉神經脊束核吻側亞核背內側區及其鄰接的網狀結構（ dorsomedialpartofthesubnucleusoralisofthespinaltrigeminalnucleusanditsadjacentreticularformation ， vodm - lrf ）和帶狀區[包括背側的三叉上核尾外側部（ caudolateralpartofthesupratrigeminalnucleus ， vsup - cl ）和感覺主核背內側部（ dorsomedialpartoftheprincipalsensorytrigeminalnucleus ， vpdm ）及腹側的兩個分別位於三叉神經運動核腹側和上橄欖核背側的暫命名為avm （ areaventraltothemotortrigeminalnucleus ）和ado （ areadorsaltothesuperiorolivarynucleus ）的兩個小核團] 。 -
Oogenesis was described briefly and the ways of the formation of yolk granules were explored. at first, eight stages in the oogenesis of the acrida chinensis were distinguished and described respectively, basing on the changes of the oocyte ' s size, chromosomal changes in the nucleus of the oocyte, vitellogenesis and the size of the follicle cells
在基礎理論方面，本研究首先在光鏡水平對中華蚱蜢卵子發生進行了階段劃分；並以此為依據，用組織化學方法對卵子發生中卵母細胞與濾泡細胞遺傳物質的變化及作用，組成卵黃的生物大分子物質的生成及變化進行了初步研究。 -
Portunus, trituberculatus the spermatogonium exist in two different forms, the second form comes from the first one. during spermatogenesis, chromatins condense at different level. the nucleus changes into homogeneous since middle spermatid stage, and the nucleus extends into the radial arm
三疣梭子蟹在生精細胞階段，染色質不同程度的濃縮凝集；在精細胞階段，核質呈均質狀，形成薄壁的圓球形核杯，部分核質延伸入輻射臂內。 -
In accordance with this rule, it may safely be assumed that the forefathers of boston had built the first prison - house somewhere in the vicinity of cornhill, almost as seasonably as they marked out the first burial - ground, on isaac johnson s lot, and round about his grave, which subsequently became the nucleus of all the congregated sepulchres in the old churchyard of king s chapel
根據這一慣例，我們可以有把握地推斷：波士頓的先民們在谷山一帶的某處地方修建第一座監獄，同在艾薩克約朝遜地段標出頭一塊壟地幾乎是在同一時期。后來便以他的墳塋為核心，擴展成王家教堂的那一片累累墓群的古老墓地。 -
The relativistic random phase approximation ( rrpa ) is a relativistic extension of the random phase approximation for studying microscopically nuclear dynamical excitations and giant resonances. the consistency of rrpa calculations requires two aspects : first, it demands that the relativistic mean - field wave " function of nucleus and the particle - hole residual interactions in the rrpa are calculated in a same effective lagrangian. second, the consistent treatment of rrpa within rmf approximation requires the configurations including not only the pairs formed from the occupied fermi states and unoccupied stat es but also the pairs formed from the dirac states and occupied fermi states
自洽的相對論無規位相近似理論的自洽性要求有兩方面的內容：第一，描述原子核的激發態性質和基態性質時必須從同一個有效的拉矢量出發；第二，相對論無規位相近似計算，不但要考慮正能的粒子-空穴組態的貢獻，而且還要考慮從fermi海核子態到dirac海負能核子態形成的對激發的貢獻。 -
Exopalarmon carinicanda there are two kinds of spermatogenium in this species, the second kind spermatogenium come from the first one. chromatins condense in each stage at different level. the nucleus changes into two forms : fibrous nuclear and vesicular nuclear
在生精細胞階段核內染色質有不同程度的凝集，在成熟精子中核質分化成泡狀核和絲狀核，整個精子發生過程無核仁發現。 -
Since the magic number 28, which is the first that requires the introduction of a strong spin - orbit interaction belongs to the if2p shell in the nuclear shell model. so the nuclei in the if2p shell have been a research hotspot in nuclear physics. the doubly odd nucleus 64cu which is also in the if2p shell has been the subject of many experimental investigations previously via various type of nuclear reaction such as 64ni ( p, ny ) and its excitation leveles have been already studied to about 8 mev
放射性核素~ （ 64 ） cu是奇奇核，屬於1f 、 2p殼層，而在原子核殼模型中，第一個需要引入強自旋-軌道藕合才能出現的幻數就在1f 、 2p ? ?殼層，因此if 、 zp殼層一直是核物理領域的研究熱點，近三、四十年來使用了各種不同類型核反應例如『 4ni … ， fly ）等反應，對『 ll激發態性質進行了廣泛的研究，其激發能級已到了smev左右。 -
Results showed : ( 1 ) cbt cell death in low tempratures is accompanied by characteristic changes, such as, reduced cell size, distorted nucleus, chromatin condensation and margination and cell ( cytoplasmic ) vacuolization ; cell mortality and ca2 * concentration increase along with time passed in low temperature. mitochondrial membrane potential and 02 increased at first, and then decreased. activities of sod decreased at first, followed by significant increasing and finally depressed
結果表明： （ 1 ） cbt在低溫協迫下，細胞圓縮，細胞核變形，染色質濃縮且邊位，細胞質空泡狀；細胞死亡率隨處理時間的增加而增加；細胞內鈣離子濃度隨處理時間延長而遞增；線粒體膜電位差在低溫處理早期急速上升，隨后一直下降；細胞內超氧陰離子（ o _ 2 ~ - ）在低溫處理前期出現高峰，接著呈下降趨勢；細胞內sod活性在低溫處理前期減弱，接著上升，然後持續下降。 -
Spacecraft giotto s encounter with comet halley provided the first ever opportunity to take images of a comet nucleus when comet halley returned in 1986
1986年哈雷彗星回歸時，歐洲太空總署發射的太空船喬圖號成功拍攝到哈雷彗星的彗核。 -
Secondly, on the base of pairing correlation, the odd - even differences of nuclear qualities were researched systemically, then we educed the following three mostly research results. first, from the binding energy formula of the nuclear, fitted the nucleus experimental data of the a - 130, 150 and 190 regions by using the odd - even differences formula of binding energy, the odd - even differences of binding energy were observed, it showed that even - even nucleus were steadier than neighboring odd - even ones and odd - even nucleus were steadier than neighboring odd - odd ones, this conclusion accorded with the experimental results
本文的重點是在對關聯的基礎上，系統地研究了原子核性質的各種奇偶差，主要研究結果有以下三個方面： （ 1 ）從原子核的結合能公式出發，運用結合能奇偶差的公式，擬合a為130 ， 150和190區的原子核的實驗數據，可以看出結合能存在的奇偶差，表明偶偶核比相鄰的奇偶核穩定，奇偶核比相鄰的奇奇核穩定，得到了與實驗一致的結果。 -
The forming - nucleus drive power could form numerous little crystal nucleus under natural melting temperature. the formation of tic particles in the melt could be divided into two phases which was forming - nucleus and growth. the forming mechanism of tic was : melting ti first surrounded c, then ti melting in the alloy and c formed a complicated reaction mesosphere on the carbon surface
根據熱力學及動力學分析，認為在碳顆粒界面處tic的形核率很高，形核驅動力足以在正常的熔煉溫度下形成眾多的小晶核；熔體中tic顆粒的合成可分為形核與長大兩個階段，其形核機制為：首先活性ti原子包圍c ，溶入合金中的ti與c在碳表面形成一復雜反應中間層，隨著反應進行， ti和c顆粒不斷減少，生成的tic不斷彌散分佈於熔體中；其長大過程伴隨著tic顆粒的相互堆砌、聚集和形態規則化。 -
According to the off - line rnb ' s requirement of the radioactive isotope, the doubly odd nucleus 64cu produced by reactor was chosen as the first nuclide to carry out expermental research about the off - line rnb
按照離線放射性核束對放射性同位素的要求，我們把堆照放射性同位素樣品~ （ 64 ） cu作為首選核素來開展離線放射性核束的實驗研究工作。
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