There are a great of eolian sands distributing in this area and their main grain sections appear in -40 ~ +80 meshes.是什么意思_There are a great of eolian sands distributing in this area and their main grain sections appear in -40 ~ +80 meshes.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句