Carbon tetrachloride (CTC) as an ozone depleting substance (ODS) and a feedstock of Freon series compounds has been phased out.是什么意思_Carbon tetrachloride (CTC) as an ozone depleting substance (ODS) and a feedstock of Freon series compounds has been phased out.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句