查询词典 nucleus

A vivid example of this: in the two deuterium nuclei polymerization into a helium-4 nucleus, it seems quality is not conservation, is the quality of helium-4 nucleus does not mean that two of the deuteron and quality.

这个例子生动地说明：在2个氘原子核聚合成1个氦4原子核时，似乎质量并不守恒，也就是氦4原子核的质量并不等于2个氘核质量之和。

The thylakoid of chloroplast was lost, the chloroplast was shrinked and composed into several discontinuous parts, which suggest that the function of chloroplast was destroyed;(2) the cell wall was thickened clearly, plasmolysis was found in most of Platymanas subcordiformis cells;(3) the number of mitochondria increased, some cristae of mitochondria were dissolved;(4) the number of vacuolar increased and the size of vacuolar was not uniform, the shape was deformed;(5) the nucleus was deformed and part of the nucleus membrane was dissolved;(6) Golgi dicytosomes accompanied with a loose arrangement of cisternae and the peripheral tips of the dictyosome cisternae are not especially swollen.

叶绿体内的类囊体缺失，叶绿体皱缩，叶绿体被分离成几个不连续的部分，说明叶绿体功能被破坏；(2)细胞壁明显增厚，细胞壁与细胞膜存在质壁分离现象；(3)线粒体数目增多，部分内嵴遭破坏；(4)液泡数目增多，大小不等，形状不规则；(5)细胞核变形，核膜部分解体；(6)UV-B处理的高尔基体有一个排列松弛的潴泡，潴泡的外围顶端并没有特别膨大。

In the normal group, electron microscopy showed normal chondrocytes were oval, and cells and cell membrane were intact. In cytoplasm, there were abundant rough endoplasmic reticulum, dictyosome, and mitochondria with intact nucleus, and even chromatin. In the model group, chondrocytes exhibited obvious pyknosis and their shape was irregular. The areolae around cells disappeared; cell organs in cytoplasm coagulated to flaps which showed electron dense and was uneasy to observe; the shape of nucleus showed irregularity, and caryotin gathered densely.

电镜下正常对照组软骨细胞呈椭圆形，细胞及胞膜完整，包质内可见丰富的粗面内质网、高尔基体、线粒体，细胞核完整，染色质分布均匀；模型对照组软骨细胞明显固缩且外形不规则，细胞周晕消失，胞浆内细胞器凝成高电子密度的片状物不易分辨，细胞核不规则，染色质浓聚，散裂于核中。

Basing on the view point of the α particle structure of the 12 c nucleus,the form factor and the transition form factor of the α particle in 12 c nucleus are as inputs,the inelastic scattering of pion-12c for 2+(4.43 mev) and 3-(9.64 mev) at tπ=150,180 mev are studied within glauber scattering theory.the calculated differential cross sections show better agreement with the experimental data.

从12c原子核的α粒子结构观点出发，应用12c原子核内α粒子的形状因子和跃迁形状因子，在glauber散射理论框架下，计算了共振区内能量为tπ=150，180 mev，π-12c的2+(4.43 mev)和3-(9.64 mev)非弹性散射微分截面。理论结果与实验较好8 t tt 8.c o m 地符合。

Fig 1 The results of two color FISH A:Normal sperms(a sperm nucleus with a red fluorescence domain was X sperm, and with a green fluorescence domian was Y sperm);B:Numeric chromosome abnormal sperm two green fluorescence domains within the same sperm nucleus which may be classified in Y disomic sperm or diploidy sperm, in the case of hybridization with two probes, one euchromosome specific and the other sex chromosome specific, this sperm could be discriminated as disomic or diploidy sperm

图1 双色荧光原位杂交结果 A：正常精子(精子头部有1个红色荧光信号者为X精子，有1个绿色荧光信号者为Y精子)；B：染色体数目异常精子两个绿色荧光信号同在1个精子核内，可为Y双体精子或二倍体精子，若用1条常染色体探针和1条性染色体探针进行双色荧光原位杂交，可以区别该精子属Y双体精子或二倍体精子

There are commonly eight nuclei in the embryo sac: the egg apparatus at the micropylar end, made up of an gee nucleus and two synergid nuclei; three antipodal cells at the oppsite chalazal end that probably aid embryo nourishment; and two polar nuclei in the center that fuse to form the primary endosperm nucleus.

通常胚囊中有8个核，卵器在珠孔端，由卵和两个助细胞组成；3个反足细胞在合点端，可能为胚胎提供营养；胚囊中央有2个极核，融合在一起形成最初的胚乳核。

Under the high frequency vibrating action, the crystal grain formed on the surface of the crystal nucleus eradiation equipment would be broken and peeled off, thereby ejected to zinc molten pool continuously and served as crystal nucleus source of equiaxed grain during solidification.

结果表明，当一种带有冷却结构且进行高频振动的晶核发射器插入锌液内时，锌液在晶核发射器表面迅速形核且长大，在高频振动作用下表面形成的晶粒将被折断剥离，从而连续不断地弹射到锌液中，成为凝固过程中形成大量等轴晶的晶核来源；采用带有水冷和气冷结构的晶核发射器对锌液进行振动激发形核处理后，锌凝固组织中的等轴晶率可分别提高到65%和80%。

From traditionary nucleus pulposus exsection to spinal fusion,endoscope and minimally invasive techniques,and prosthetic disc nucleus and artificial disc replacement in recent years, however,they relieved clinical complaint temporary by means of the destruction of structure and function of lumbar intervertebral disc.

从传统的髓核摘除术到脊柱融合术、内窥镜和微创技术及近年开展的人工髓核和椎间盘置换术，但它们都是以破坏椎间盘结构和牺牲生物力学功能为代价的，不能阻止和逆转椎间盘退变，因此椎间盘退变的基因治疗和组织工程成为研究的热门课题。

Poptosis-inducing factor is a mitochondrion-localized flavoprotein with NADH oxidoreductase activity, which is encoded by the nuclear gene. Following induction of apoptosis, AIF is released from mitochondria and translocated to cytosol, and then to the nucleus. The mechanism of AIF translocation from mitochondria to nucleus is still unclear. It has been suggested that translocation is due to the presence of nuclear localization signal.

bstract： AIF(apoptosis-inducing factor)为位在粒线体内膜膜上之蛋白质，在正常细胞中，能够藉由维持电子传递链复合体I的稳定性，进而影响细胞能量的产生及自由基的清除，并且也会维持粒线体的构造；反之，当细胞遭受到不当刺激时，粒线体膜通透性改变，使得原本存在於粒腺体间质中之AIF，被释放出来，进入细胞核内造成DNA片段化，进一步促进细胞凋亡。

In this paper, from the viewpoint of latent functional group, application and development of heterocyclic compounds such as furan nucleus and thiofuran nucleus used in organic synthesis as pre-functional group are introduced.

本文从潜官能团角度概括介绍了呋喃环和噻吩环作为前官能团在有机合成中的应用及进展，展望了杂环作为前官能团在天然产物合成中的重要意义。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。