zzccchen

NEW： 1. 添加单独风扇调整功能； 2. 提供几个基础预设； 3. 优化页面布局

Extend deml_elementdata.py

5

## Extend the heat_cap item Extend the heat_cap item in the properties dictionary based on https://www.engineersedge.com/heat_transfer/heat_capacity_of_the_elements_13260.htm , especially the rare earth element data * Fixed an exception where NaN appears...

Update deml_elementdata.py

3

## Update the electric_pol item Update the **electric_pol** item in the properties dictionary based on the latest literature [1], especially the rare earth element data. [1] Schwerdtfeger, Peter, and Jeffrey...