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With the development of science and technology, the demand of the medical examination and test increase step by step.

摘 要：随着科学技术的进步与发展，人们对医疗检测水平的要求也越来越高。

Menu of Classes Name Description Intro To Step This workout prepares you to participate in all step classes.

菜单类 产品名称产品说明简介步这锻炼你准备参与所有步骤课。

Software Description: About Metalogic Calculator, This calculator allows you to enter equations as you would write them on paper, and it solves equation step by step.

Metalogic Calculator 这个计算器软件允许你就像在纸上那样键入等式，并且可以按步骤对等式进行解答。

The choice of step-length strongly affects the convergence rate of the Gradient Method, the classical Gradient Method—the method of steepest descent converges rather slowly in most cases, the poor behavior of the method is due to the optimal choice of step-length.

步长的选取对梯度法的收敛速度影响非常大，经典的梯度法-最速下降法在大多数情况下收敛得相当慢的原因在于最优步长的选取。

Through it methodically step by step, and find out how she does

我在想我是不是能出方法一步一步地做，找出她是怎么做的，我也能那样做。

The results show that the surface microphotograph yielded in multiple-step machining with slow feeding and in one-step compound process is satisfactory, and there are fewer defects, lower deformation and thinner metamorphic layers; while that produced in other processes is quite rough, there are more defects and bigger deformation on the machined surface, and they are detrimental to assembly properties and fatigue life of fastening holes.

结果表明，钻扩铰多步慢进给工艺和一步复合制孔工艺所加工出的表面，平整、光滑、加工缺陷少、晶格变形小、变质层薄；而其它工艺条件下，孔表面微观形貌复杂、加工纹路紊乱、表面缺陷多、晶格畸变大，变质层厚，这些加工状况，对紧固孔的装配性能和疲劳寿命都有很大的影响。

The imported second hand bar mill of Changzhi Iron and Steel Co was reformed step by step After four times reforming,the economic indexes,such as product quality and productivity,etc ,were increase

介绍了长治钢铁公司与北京科技大学轧钢研究所合作，对引进的二手棒材轧机进行了分阶段改造。

With the development of machine and cutter for high-speed milling, the application of high-speed milling steps up to the stage of manufacturing history. And for its obvious advantage it is important step by step.

随着高速加工机床和刀具技术的不断发展，高速加工的应用登上了制造业的历史舞台，显著的优点使得其地位越来越举足轻重。

At first step, the processor before the deformable body contact the end face of cone die cavity regarded as an extrusion process. The minification of core boss's cross-section regarded as compressibility of direct extrusion, which acted as definition factor when construct the Direct Extrusion Model element. Another step, the model element of flat punch extrusion on wedge piece process was constructed when propose the process of deformable body overflow die corner. In this way the spherical end face of blank looked as cone end face one, t he approximate treatment is one of originality innovation in this paper. At last, the two elements have been connected and constructed the model element of cone boss part's deformation in the open die forging.

对于锥形凸台成形的第一个特征时段，即坯料和锥形凸台型腔的端面接触之前的变形过程，本文将凸台的截面缩小率转换成挤压成形的压缩率并以此为界定，建立了不同截面缩小率时的锥形模正挤压的模型单元；对于锥形凸台成形的第二特征时段即锥形模的角部充满过程，在详细考察锥形型腔端面对变形过程影响的基础上，将变形体的球形端面近似成锥面建立了平冲头挤压楔形体的模型单元；最后将前述两种模型单元有机连结，构建了开式模锻中整个锥形凸台成形过程的定量描述。

It is not easy to do IDC company to hold out, because investment is larger, intermediary enlighten elegant development arrives today, itself took not little roundabout way, I and introduced from the northern and western nationalities or from abroad Xiang Feng are mention in inn of a chaffy dish build intermediary enlighten elegant, at that time IDC company of home is not very much, the business is so better also do, but competition is intense later, gain is small also, at first intermediary enlighten elegant business and technology are us almost two people do together, be asleep in the computer room mistily is constant some thing, busy to before dawn it is 34 bits often thing, but also be at long last one step by step came over, calculate so now, the development of the company there supports very much all the time in him heart, although I had been absent now intermediary enlighten elegant such also.

做IDC公司挺不轻易的，因为投资比较大，媒迪雅发展到今天，本身走了不少的弯路，我和胡向锋是在一个火锅店里谈起建立媒迪雅的，那个时候国内的IDC公司并不是很多，所以生意也比较好做，但是后来竞争激烈了，利润也就低了，起初媒迪雅的业务和技术几乎都是我们两个人一起做的，模模糊糊在机房里睡着是常有的事情，忙到凌晨三四点是经常的事情，但总算也是一步步的过来了，所以就算到现在，自己心里一直很支持那边公司的发展，虽然现在我已经不在媒迪雅也如此。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。