Least square method of polynomial or the method based on the given function are used to fit pump characteristic curve in pump selection or operation.
在水泵的选型或运行中，通常采用多项式的最小二乘法或根据假设的函数关系来拟合水泵性能曲线。
This paper introduces the classification, characteristic, function, preparation method and potential use field of the intelligent coatings.
论述了智能型涂料的分类、特点、功能和制作方法，以及其潜在的应用领域。
This paper introduces the characteristic and function of VP1606 voice chip and implementing method of environmental protects equipment long distance intelligent monitor.
文中介绍了V P 1606语音芯片的特性和功能以及利用该语音芯片实现环保设备远程智能监视仪的方法。
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