The core content and the most characteristic in the paper is that Timber demand curve amend method (TDCAM) is designed and advanced to calculate environmental shadow price.
论文的核心内容和最具特色之处是对木材需求曲线修正法进行改进和完善，构建了一个简洁明了的环境—经济的分析框架模型。
This paper points out the problems existed in the experiment to test the characteristic curve of diode by voltammetry, and presents a method to improve the experiment.
指出了一般用伏安法测二极管特性曲线一实验中存在的问题，同时给出其改进方法及在实验中应注意的问题。
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。
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