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TiexinCat
一个以PHP+MySQL进行开发的通用网站系统。
适用于:网店,医院,学校,企业站,个人网站,企业内部Intranet,中小型行业门户站点等……
安全-高效-轻量-免费-共享
PC版-手机版-微信接口一站搞定
支持PHP5.2~PHP7.0/模型无限扩展/字段无限扩展/按类别扩展字段/无限级分类展示/
接口 : 微信/短信/ip地址/地图(baidu,google)/支付(paypal,支付宝,财付通)/
其它 : 模板继承/tag缓存/js标签/
文档/资讯(默认) : 商品展销/新闻/专题/课程资源/样例文档(A general web site system developed with PHP+MySQL.
Applicable to: online shop, hospital, school, enterprise station, personal website, enterprise Intranet, small and medium-sized industry portal sites, etc.......
Safety high efficiency light weight free sharing
PC version - mobile phone version - WeChat interface one stop
Supports PHP5.2~PHP7.0/ model infinite extension / field infinite extension / category extension field / infinite class classification display /
Interface: WeChat / SMS / /ip address map (Baidu, Google) / payment (PayPal, Alipay, caifutong) /
Other: templates inherit /tag cache /js tags /
Document / information (default): Commodity Exhibition / news / topic / course resources / sample document)
- 2020-12-15 22:39:12下载
- 积分:1
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stiffened ideal for the design of large thickness overcome the problems that may...
加强肋
理想的设计
为了克服壁厚大可能引起的问题,使用是一种可减少壁厚并能增加刚性的有效方法。
一般来说,部件的刚性可用以下方法增强
增加壁厚;
增大弹性模量(如加大增强纤维的含量);
设计中考虑。
如果设计用的材料不能满足所需刚性,则应选择具有更大弹性模量的材料。简单的方法是增加塑料中增强纤维的含量。但是,在特定壁厚下,这种方法仅能使刚性呈线性增长。更有效的方法是使用经过优化设计的。由于惯性力矩增大,部件的刚性便会增大。在优化的尺寸时,不但要考虑工程设计应当考虑的问题,还应考虑与生产和外观有关的技术问题。
优化的尺寸
大的惯性力矩可很容易地通过设置又厚又高的来实现。但是对热塑性工程塑料,这种方法常会产生制品表面凹痕、内部空洞和翘曲等问题。而且,如果的高度过高,在负荷下结构将有可能膨胀。出于这种考虑,必须在合理比例内保持的尺寸(见图1)。-stiffened ideal for the design of large thickness overcome the problems that may arise. use of a reduced wall thickness and rigidity can increase the effective method. In general, the rigid parts of the following methods can be used to enhance increased thickness; increased elastic modulus (such as increasing fiber content); Design considerations. If the design of the materials used can not meet the rigid requirements, they should have a greater choice of elastic modulus of the material. The simple way out is to increase plastics reinforced fiber content. However, in s
- 2022-01-28 16:48:59下载
- 积分:1
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adc0832 sample programs for reference purposes only! for reference purposes only...
adc0832示例程序,仅供参考! 仅供参考!-adc0832 sample programs for reference purposes only! for reference purposes only!
- 2022-12-30 15:55:03下载
- 积分:1
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LargeNumberProd
Large Number Production
- 2017-11-06 14:52:09下载
- 积分:1
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地震合成记录道集显示hechengdizhenjilu
地震合成记录道集显示,解决了地震道每一道纵向显示,代码解释详细(The seismogram is displayed in detail, and the code is explained in detail.)
- 2018-04-09 16:54:28下载
- 积分:1
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MATLAB初学者
包好了一些用matlab解微分方程的源程序
MATLAB初学者
包好了一些用matlab解微分方程的源程序-MATLAB beginner beginners MATLAB wrap some source code for solving differential equations using matlab
- 2022-07-10 02:24:14下载
- 积分:1
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weatherf
说明: 小巧的天气预报实时显示系统,采用GDI+技术开发,实现了基本且简单的功能,能在图片上实时显示温度/气温等天气预报情况,并能进行数据的维护更新。小巧的天气预报实时显示系统,采用GDI+技术开发,实现了基本且简单的功能,能在图片上实时显示温度/气温等天气预报情况,并能进行数据的维护更新。(compact real-time weather display system using GDI technology development, achieve the basic and simple functions, in real-time pictures show that the temperature/weather conditions such as temperature, and for the maintenance and update of data. The compact, real-time weather system, using GDI technology development, achieve the basic and simple functions, in real-time pictures show that the temperature/weather conditions such as temperature, and for the maintenance and update of data.)
- 2005-11-09 09:50:49下载
- 积分:1
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fixed-wing-optimization-master
说明: 可以用于固定翼飞机运行仿真以及相关的优化(for running simulation/optimisation of fixed wing aircraft)
- 2021-03-09 00:24:27下载
- 积分:1
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SMS Messenger Mobile 104
SMS Messenger Mobile 104
- 2022-01-23 10:16:36下载
- 积分:1
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添加删除修改管理员考生资料,初始化考场信息,使考试能够顺利进行。...
添加删除修改管理员考生资料,初始化考场信息,使考试能够顺利进行。-Add delete modify data administrator candidates, test initialization information, so that the smooth conduct of examinations.
- 2023-03-29 18:40:04下载
- 积分:1