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是PCB的入门学习资料，希望对学习PCB的，有帮助，
是PCB的入门学习资料，希望对学习PCB的，有帮助，-PCB entry is the learning materials, and they hope to learn from the PCB, has help
- 2023-03-31 08:35:04下载
- 积分：1
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vb Loans have written before选号re
vb 自己编写双色球，先选号再抽奖，试试自己的运气-vb Loans have written before选号re-draw, try their luck
- 2022-08-03 09:45:26下载
- 积分：1
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问题描述:
一杯沸水冷却，圆柱体模型，底面半径0.05m，高0.1m，周围温度20度，初始水温100度
方程是四维输运方程（常数a^2=k/(c*...
问题描述:
一杯沸水冷却，圆柱体模型，底面半径0.05m，高0.1m，周围温度20度，初始水温100度
方程是四维输运方程（常数a^2=k/(c*p)，k是热传导系数0.6006焦/（米*秒*度））
初始条件：t=0时水等于100度
边界条件：1.上下壁都是自由冷却，第三类边界条件，周围温度保持在20度（H=k/h,h取1）
2.杯壁绝热，第二类边界条件
图形显示格式,取过圆柱轴的截面温度变化将其做成动画.
-Problem description : a cup of boiling water cooling cylinder model, the bottom radius of 0.05m, 0.1m high. temperature around 20 degrees, initial temperature of 100 degrees equation is four-dimensional equations (a constant ^ 2 = k/(c* p), k is the thermal conductivity coefficient of 0.6006 Coke/(m** seconds degrees)) initial conditions : t = 0 to 100 degree water boundary conditions : 1. upper and lower walls are free cooling, the third boundary conditions, maintain the temperature around 20 degrees (H = k/h, h for 1) 2. Beibi insulation, The second category boundary conditions graphics format, cylindrical shaft for the cross section of its temperature changes caused animation.
- 2022-05-12 17:55:03下载
- 积分：1
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entire catalog all the information COPY aims to catalog to (whether layers subdi
整个目录所有信息复制到目录（是否层子目录）
- 2023-06-23 14:35:03下载
- 积分：1
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电力104规约Demo版 C++版本，供大家参考
电力104规约Demo版 C++版本，供大家参考-104规约Demo版C
- 2022-02-03 19:19:45下载
- 积分：1
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这是用flash制作的开屏动画，不需要编码，只需要使用遮罩就可以实现。...
这是用flash制作的开屏动画，不需要编码，只需要使用遮罩就可以实现。-This is the beginning of the production of flash animation screen, no coding, only need to use the shielding can be achieved.
- 2022-01-31 08:38:30下载
- 积分：1
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VC preparation for the procedure. Its main function is to achieve some data clas...
用VC编写的一段程序.主要功能是实现对一些数据的分类.方法是用模式识别中的固定增量法.-VC preparation for the procedure. Its main function is to achieve some data classification. Was used to pattern recognition fixed incremental method.
- 2022-01-28 11:20:38下载
- 积分：1
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很不错的结合DateTime的综合例子
很不错的结合DateTime的综合例子-very good combination DateTime the comprehensive example
- 2023-08-16 04:30:04下载
- 积分：1
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你需要下载的通用工具箱和信号工具箱。
You need to download the general purpose toolbox and the signal toolbox.
You need to unzip these toolboxes in your working directory, so that you have toolbox_general/ and toolbox_signal/ in your directory. -You need to download the general purpose toolbox and the signal toolbox.
You need to unzip these toolboxes in your working directory, so that you have toolbox_general/ and toolbox_signal/ in your directory.
- 2022-03-18 11:03:03下载
- 积分：1
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混沌分析工具，包括计算lyapunov指数，指数谱，分数维等，c语言编写，含源码...
混沌分析工具，包括计算lyapunov指数，指数谱，分数维等，c语言编写，含源码-chaos analysis tools, including the calculation of lyapunov index, the index spectra, fractal dimension, c language, Containing FOSS
- 2022-02-16 00:48:57下载
- 积分：1
