求下文档，需一下载券，大谢

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求下文档，需一下载券，大谢: http://wenku.baidu.com/link?url=wO9-R_E9H0nOEBkvPX0BRhPlCwWYfBYnkKuY_9orqNsOsk6LJeKXjMr1XUBXJRw26LUijNDEcPcIJ1e-i1nlMwywLy8KmAdje7k0EudNxuu

求下载豆丁文档，急~在线等~: 求下载文档网址： http://www.docin.com/p-773940673.html?qq-pf-to=pcqq.c2c 十分感谢在线等

文档打不开需要下载什么软件？: 我是新买的笔记本电脑，装的wind7····Z近别人传我一些文件资料，我根本就没法看~同学说是少了什么软件，请问我要下载些什么软件啊？一般买了本本需要自己下点什么软件啊？才能正常的支持文档打开？

软件开发过程中需要写的文档?: 想要了解一下软件开发的过程涉及的文档说明都有哪些? 比如在需求分析阶段要写需求分析文档，还有软件开发文档什么时候该写什么养的文档 ?? 还有在什么时候设计数据字典等等希望写的详细一点如果有范例就发到我的邮箱 tczmy@yahoo.cn... 想要了解一下软件开发的过程涉及的文档说明都有哪些? 比如在需求分析阶段要写需求分析文档，还有软件开发文档什么时候该写什么养的文档 ?? 还有在什么时候设计数据字典等等希望写的详细一点如果有范例就发到我的邮箱 tczmy@yahoo.cn 想求一个详细过程谢谢展开

高手帮忙翻译一工科英文！！高分大谢！: Figure 2 SEM micrographs of worn seat insert surface of engine #6175 after 1474 hours of testing. The arrows and labels indicate the locations of EDX analysis. The same adhesion phenomenon occurs on the valve seat surfaces. Figure 4 show... Figure 2 SEM micrographs of worn seat insert surface of engine #6175 after 1474 hours of testing. The arrows and labels indicate the locations of EDX analysis. The same adhesion phenomenon occurs on the valve seat surfaces. Figure 4 shows SEM micrographs of the worn exhaust valve seat surface of engine #6175 after 1474 hours of testing. The valve material is Stellite 6 faced 23-8N (solution treated and aged). The arrows in Figure 4b indicate the locations of EDX analysis. Note the pits and deposits on the worn seat surface. Figures 5a shows the EDX spectrum of spot A on Figure 4b showing adhered insert material. Note molybdenum and manganese in the spectrum. Figure 5b shows the EDX spectrum of spot B in Figure 4b showing both adhered insert material and oil deposits. Note molybdenum.， phosphorous， chlorine， calcium， and zinc in the spectrum. Other valves from different engines labeled as "adhesion" in Table 2 share this typical adhesive phenomenon. The adhesive wear mode appears to predominate at valve seat interfaces with high asperity contact stresses or high combustion pressure. The surface roughness can contribute to adhesion significantly. Valves faced with Stellite alloy show less adhesive wear than unfaced valves， Table 2. The presence of high melting point phases， such as carbide or ceramic compounds in the contacting materials is believed to help prevent microwelding or adhesion related wear. Shear strain， also known as radial flow， is defined as the first derivative of the displacement， i.e.， . Figure 6 [8]. Shear strain controlled wear can characterized as a surface plastic deformation process. The wear is the result of the shear strain on the seat surface exceeding the plasticity limit of the material. The material is then detached or delaminated from the seating surface as wear particles. The typical appearance of shear strain controlled wear are ridges and/or radial flow of material on valve seats and inserts. Shear strain controlled wear sometimes is associated with adhesion. 展开