Before revision: Since then, other commercial systems have been developed (e.g., by Grundtech, Thermoscientific , ESDEMC Technology, High Power Pulse Instruments, Hanwa, TLPsol).
After revision: Since then, other commercial systems have been developed (e.g., by Thermo Fisher Scientific, Grundtech , ESDEMC Technology, High Power Pulse Instruments, Hanwa, TLPsol).