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Radioactive decay studies have found a kinds of elements can be α or β decay and the decay into another element, while the α-decay product of -α-rays became one of the deep structure of the material means of .1911, the Rutherford and others bombarded atoms with α-rays observed wide-angle deflection to determine the nuclear structure of atoms and nuclei was first proposed the term .1919 year, Rutherford and others have also found that with α-ray bombardment of nitrogen will release the nuclear protons, this is the first time Artificial realization of a nuclear reaction, after the bombardment of nuclei with the radiation caused by nuclear reaction method to become the primary means of research in nuclear.

放射性衰变研究发现了一种元素可以通过α衰变或β衰变而变成另外一种元素,而α衰变的产物——α射线又成了人们探讨物质深层结构的手段。1911年,卢瑟福等人用α射线轰击原子、观察到大角度偏折,从而确定了原子的有核结构,并首次提出原子核这一名词。1919年,卢瑟福等人又发现用α射线轰击氮核会放出质子,这是首次用人工实现的核反应,以后用射线轰击原子核来引起核反应的方法逐渐成为研究原子核的主要手段。

In this dissertation, the attention has been focused on the design and function predication of the modern Edger for the rolling line, which is significant theoretically and practically.

文章用系统的观点,从轧线大系统的角度阐述了立辊轧机子系统在轧线上的作用和功效,指出了原立辊轧机的多处先天不足,得到必须"推倒重来"的结论。

This implies that we're doomed to come up short by discussing Ji Dachun's paintings merely from the perspective of taste. Even though his paintings are funny (which might just be something that is temporary limiting him), this funniness is not the starting point, but the ending point.

这也意味着仅仅从趣味的角度去谈论季大纯的绘画注定是贫乏的,虽然他的作品的确有趣(可能也正是这种有趣暂时限制了他),但这种有趣却并不是他的出发点,而是一个结局。

This thesis intends to explore fundamental causes for risks related to financing activities of our state-owned commercial banks and draw relevant proposals to tackle these causes by undertaking thorough investigations into internal and external variables related to financing activities of the banksThis thesis firstly investigate four external variables affecting financing activities, including enterprises, government, central bank and social creditability before proceeding to make an enquiry into internal variables and make proposals to deal with these external and internal variables that cause risks related to financing activities.

本文旨在通过对国有商业银行贷款风险的研究,对我国国有商业银行信贷风险从银行内、外部因素这两大角度作了深入的分析,探究我国国有商业银行信贷风险产生的根本原因,并提出相应的对策。文章从企业、政府、中央银行、社会信用等四个方面对信贷风险产生的外部因素进行了探究,而后通过对信贷风险产生的内部因素的分析,为银行信贷风险管理指明了方向。

By using multipart moulding process, heat exchange and corrosion around the special-shaped tube were greatly controlled.

从化工保温防腐的角度出发,将异型管件的外防护层的工艺进行了改进,运用了分模造型技术,从而使异型件处的热交换和腐蚀得到了很大程度的控

The simulation results show that there are many factors to influence the reverberation, each of them has different contribution to the reverberation, and the angles configurations and the characters of interface have main function, and the effect of the change of sound velocity on reverberation can be ignored.

模型仿真结果表明,影响双基地声纳混响的因素众多,每个因素在对双基地混响的贡献是不一样的,双基地角度的配置和界面性质变化对混响的影响很大,而声速的变化对混响的影响可以忽略不计。

KGy dose of γ-irradiation decreased content of vitamin B1 significantly and did not had a significant effect on the content of vitamin E, protein, fat, amino acid and unsaturate fatty acid. The results of x-ray diffract grams revealed that the relatively diffraction intensity tended to decrease and the diffraction angle (2θ) tended to increase with the increase of irradiation dose.

X-射线衍射图谱分析表明,1~5kGy 剂量辐照处理可明显降低水饺皮的相对衍射强度,3kGy 辐照水饺的相对衍射强度最低;背景线强度最大值的角度位置(2θ)有随辐照量增加而增加的趋势,辐照对水饺皮淀粉老化有一定的抑制作用。

Result shows that the baffle of burner has very little influence on the total resistance characteristic; both the speed of rich side and lean side are affected by the angle of burner as a whole, furthermore, the lean side is influenced more greatly; the separation performance could be enhanced with the increase of burner's angle and the best separation effect could be acquired when the three baffles are dissymmetrically arranged.

结果表明,燃烧器挡板角度的调整对燃烧器的总体阻力特性影响很小;燃烧器挡板偏转对于燃烧器整体以及浓淡两侧的气流速度都有一定的影响,且对淡侧影响较大;燃烧器的浓淡分离效果随挡板偏角的增加而显著增加,且三挡板非对称布置的浓淡分离效果最好。

The experimental results indicate that the maximum slope angle measured by LSCM reaches at least 50°, and the clear three dimensional profile is obtained in the profile analysis of cantilever. Meanwhile, the deformation accurately measured by two dimensional quantitative analysis is 3.145μm, and the field area is 384μm×288μm in mosaic function equipped with LSCM in 100×objective, which can solve the problem that the watched object's total shape in single frame micrographic image can not be obtained under high microscopic enlargement times.

实验结果表明:运用LSCM测量的斜面最大角度至少可以达到50°;在悬臂梁的形貌分析中,可获得清晰的三维形貌,同时通过二维定量分析精确测得其形变为3.145μm:在100×物镜下,运用拼接功能获得384μm×288μm的视场面积,解决了高放大倍数下,在单帧显微图像中无法获取所观测对象全貌的问题。

According to the morphological characteristics of cementite lamellae, the deformed pearlite can be divided into three kinds: irregularly bent lamella (pearlite lamella originally inclined with large angles to the rolling plane and irregularly bent after deformation); coarse lamellae with shear-band (the rhomboidal blocks of weakly deformed lamella bounded by shear band) and fine l...

按 渗碳体形态特点,变形珠光体组织可分为以下3种类型:(1)不规则弯曲片层型,即变形后的渗碳体与轧制面呈大角度偏离且不规则弯曲的珠光体。(2)带有剪切带的粗大片层型,即被渗碳体剪切带分开且变形轻微的珠光体。(3)精细片层型,即与轧制方向平行排列、片间距细小且渗碳体严重变形的珠光体。精细片层区域的比例随着轧制压下率的提高而增大。此外,重度冷轧变形还引起渗碳体严重塑性变形和部分溶解。

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推荐网络例句

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。