The results show that Jingxi anthracite is of low ash and low sulfur and has the deepest degree of metamorphism all over the country.是什么意思_The results show that Jingxi anthracite is of low ash and low sulfur and has the deepest degree of metamorphism all over the country.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句