The mathematical model based on orthogonal function as fan characteristic curve fitting is introduced and its precision and utility is validated through the calculating example.

介绍了采用正交函数法快速拟合通风机性能曲线的数学模型，通过算例验证了此数学模型的精确性和实用性。

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A new broadband slot antenna with a fan-shaped microstrip feed is presented, and the return loss curve and radiation patterns of the antenna is simulated in this paper.

介绍了一种新型的采用扇形微带馈源的宽带缝隙天线，给出了反射损失曲线和辐射方向图。

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An example of fan performance curve drawn up by this program is given.

给出了利用该程序绘制的一种通风机的性能曲线实例。

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The sinuous or angled wall, the curve, the fan that dominated his plans were not arbitrary gestures, they were responses to a particular place and program.

WSJ: Finnish Master Alvar Aalto | By Ada Louise Huxtable