For over 20 years, HGH Infrared Systems have specialized in the development of optronic and infrared systems for security, industrial and civil applications.是什么意思_For over 20 years, HGH Infrared Systems have specialized in the development of optronic and infrared systems for security, industrial and civil applications.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句