电磁光谱：各个辐射能的有关波长位置图表。
Electromagnetic spectrum: a chart showing the relative position of all electromagnetic radiation by their wavelength.
根据需要调整图表的大小、位置和属性。
Adjust the size, location, and property of the chart as needed.
将鼠标移到您想要对象位于图表位置的地方。
Move the mouse to the location where you want the object on the diagram.
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