Objective To investgate the etiopathology and pathogenesis of degeneration of ligamentun flavum(DLF), which is related to the fluorosis.是什么意思_Objective To investgate the etiopathology and pathogenesis of degeneration of ligamentun flavum(DLF), which is related to the fluorosis.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句