By test data , variation of water head damage in filter lager and quantify of intercept filth in filter lager , filter cycle , analyse research of filter relation and data count by computer . i reach a mathematics relation among related coefficients 通过实验数据,对滤层水头损失的变化,滤层截污量,截污滤层阻力增长及过滤周期、滤速关系进行了分析研究,并利用计算机进行了数据统计,得出相关参数之间的数学关系。
From the content , time and efficiency of usage of the reading material to teacher - and - students " expectation of content , form and presenting pattern , there be data counting and analysis . so i know students have intense desire for reading material presented by information technology 本论文从“阅读材料”使用的内容、使用的时间、使用的效率到师生对“阅读材料”的内容期望、形式期望、呈现方式期望,都进行了具体的数据统计和分析,并了解到学生对阅读材料通过信息技术呈现的强烈愿望。