数学中的立体几何模型很多,如柱体、锥体、球体、长方体、正方体等但热学中的估算题主要是利用圆柱体、球体、正方体模型及体积公式,现分析如下.一、利用圆柱体的体积公式V=Sh例1某油剂的密度为8×10~2kg/m~3,取这种油剂0.8 g滴在水面上,估算最后油膜形成的最大面积为( ) There are many three-dimensional geometric models in mathematics, such as cylinders, pyramids, spheres, cuboids, cubes, etc. However, the estimation questions in thermometry mainly use cylinders, spheres, cubes, and volume formulas. The analysis is as follows. I. Use of cylinders The volume formula V = Sh Example 1 The density of an oil agent is 8 × 10 ~ 2kg/m ~ 3, take this oil 0.8g drops on the surface of the water, the maximum area of ​​the final oil film formation is estimated ()