... 全部折叠全部展开 代码：全部 代码：多种 代码：Visual Basic 代码：C# 代码：Visual C++ 代码：F# 代码：JScript 导出的数学函数 (Visual Basic) 正切 (Sec(x)) ...
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导出了使用灵敏度时间控制(STC)时这类断层像的亮度函数的数学解析式。
An expression is derived for the brightness function of the echograms, which are based on the use of STC (Sensitivity Time Control).
通过力学和高等数学建立了磨具弯曲成形的数学模型，并推导出磨具的宽度函数表达式。
The mathematical model of bending formation lapping tools was established through mechanics and higher mathematics, and the width function expression of the lapping tools was deduced.
从自由涡运动方程出发，推导出管内流场的势函数和流函数方程，获得了管内流场的数学分析解；
Then basing on the free-vortex equation, potential equation and stream function of flow are achieved by mathematical analyze, and solving these equations gives flow fields.
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