点击切换搜索课件文库搜索结果(786)
文档格式:PDF 文档大小:3.12MB 文档页数:40
Air drying of vegetables is still the most widely used method and there are several options open to the dehydrator as to the type of dryer that can be used for this purpose. In the early days of the industry, tunnel and stove dryers were in general use. Designs varied widely but all of them involved the use of shallow trays upon which the material for drying was spread to a depth of 25-40mm. The tray loading and unloading involved a fairly high labour content but
文档格式:PPT 文档大小:569KB 文档页数:19
(A)General triaxial stress ellipsoid in perspective view. (B)Views normal to each of the principal planes of the ellipsoid. (After W.D. Means,1976)
文档格式:PPT 文档大小:585.5KB 文档页数:31
在3.2.2节中介绍低速风洞时,我们首次介绍了风洞 扩压器(扩压段)的作用。在那里,扩压器是试验段下 游的一段扩张管道,作用是将试验段的气体的高速度降 低至扩压器出口的很低速度。一般来说,我们可以将扩 压器定义如下:扩压器是将入流速度在其出口处降低的 任意管道(in general, we can define diffuser as any duct designed to slow an incoming gas flow to lower velocity at the exit of the diffuser)
文档格式:DOC 文档大小:2.2MB 文档页数:12
Chapter 2 Northern ireland Time Allocation: 2 periods Focal Points: physical features of Northern Ireland, the religious conflicts between the irish and the british I. General Introduction When we talk about the United Kingdom, we cant neglect Northern Ireland. This part is the smallest part with an area of about 14, 160 square kilometers and a population of about
文档格式:PPT 文档大小:1.98MB 文档页数:163
第一节 植物病害的概念 一、植物病害的概念 二、植物病害的病因 三、植物病害的类型 第二节 植物病害症状 第三节 病原物的寄生性和致病性 第四节 侵染过程和侵染循环 第五节 植物的抗病性 第六节 植物病理学简史以及植物病害的重要性
文档格式:PDF 文档大小:74.04KB 文档页数:7
Handout 1: Bode plot rules reminder Eric Feron Feb4,2004 General: Bode plot is to plot magnitudes using logarithm scale, phases using log scales. Indeed:
文档格式:PDF 文档大小:84.18KB 文档页数:25
General GMM formula Let y, be an h-vector of variables that are observed at date t, let denote an unknown vector of coefficients, h(e, y,) Be an r-vector real function. Let denote true value of 0, and suppose this true value is
文档格式:PDF 文档大小:2.81MB 文档页数:7
Vehicle Development Research Laboratory Presented at MIT 4/14/04 for 16.888/sd.77J Multidisciplinary System Design Optimization (MSDO) Prof. Olivier de Weck and Prof. Karen Willcox ... Designing Great GM Cars and Trucks!
文档格式:DOC 文档大小:333.5KB 文档页数:40
遗传的细胞学基础 孟德尔定律 真菌的遗传分析 性别决定与伴性遗传 数量性状的遗传 细胞质遗传
文档格式:PPT 文档大小:542KB 文档页数:43
15.1遗传多态性 15.2生命的起源与生物进化论 15.3物种形成 15.4分子水平的进化 15.5动植物的抗药性(自学)
首页上页2021222324252627下页末页
热门关键字
搜索一下,找到相关课件或文库资源 786 个  
©2008-现在 cucdc.com 高等教育资讯网 版权所有