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shi yan fang fa
Author(s): 
Pages: 17-20
Year: Issue:  3
Journal: Journal of Subject Education

Abstract: 实验方法张宝辉,普芳所谓实验方法,是人们根据一定的研究任务和目的,利用一定的仪器、设备等物质手段,人为地创造一定的环境或条件,主动控制或干涉研究对象,舍弃次要因素和无关因素的影响,选取或突出主要因素,即在典型的环境条件中或特定的条件下,去探索自然界奥...
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