Although the dynamometer is not accurate enough, but as students practice test weight and qualitativeexperiment is very good.
这种测力计虽不够精确，但作为学生练习测物重和进行定性的实验还是很好的。
2
The method and main results of qualitativeexperiment of unsaturated water vadose through two layer porous media is introduced in this paper.
本文主要介绍关于非饱和水在双层孔隙介质中渗流定性实验的方法和主要结果。
3
The starch qualitativeexperiment can determine the attribute of the artificial increased pigment according to the special phenomenon that plant starch with iodine union can produce blue color.