Non-CFC Foam Insulation The tank is surrounded by a thick coat of non-CFC polyurethane foam to trap heat inside the tank, saving energy.是什么意思_Non-CFC Foam Insulation The tank is surrounded by a thick coat of non-CFC polyurethane foam to trap heat inside the tank, saving energy.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句