oPlotSymbl

This package is named oPlotSymbl and it includes symbols, which are not easily available. Especially, these symbols are used in scientific plots, but the potential user is allowed to use them in other ways.
This package uses TikZ and xcolor. [ctan.org/pkg/oplotsymbl]

该包名为oPlotSymbl，包含一些不易获得的符号。这些符号主要用于科学绘图，但潜在用户可以以其他方式使用它们。
该包使用TikZ和xcolor。 [ctan.org/pkg/oplotsymbl]

quickstart

\usepackage{oplotsymbl}

Some symbols:
	\circlet~
	\circletfill~