The characteristic of Shenhhua Jurassic period coal is that easy burning, low ash, low sulfur but it is easy slagging in combustion.是什么意思_The characteristic of Shenhhua Jurassic period coal is that easy burning, low ash, low sulfur but it is easy slagging in combustion.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句