The roto-granulator is new kind of Hi-tech machinery product, and is invented recently, It is used in solidification field of chemical products such as Sulphur, Wax etc.是什么意思_The roto-granulator is new kind of Hi-tech machinery product, and is invented recently, It is used in solidification field of chemical products such as Sulphur, Wax etc.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句