[Retracted] Fabrication of Hollow Needle Tips with Nanoholes by Plasma Maskless Processing and Calculation and Detection of Complex Surface Edges

Table 1

Classification of plasma.

Categorization	High-temperature plasma	Low temperature plasma
		Thermal plasma	Cold plasma
Temperature range	-K	-K	-K
Thermodynamic properties	Thermodynamic equilibrium	Thermodynamic equilibrium or near thermodynamic equilibrium	Non-thermodynamic equilibrium
Instances	Plasma-controlled thermonuclear fusion on the sun	High frequency plasma magnetic fluid discharge	Corona discharge; Spark discharge