Objective To study the frictional resistance in the buccal segment between self-ligating brackets and archwires in the dry and artificial saliva states.是什么意思_Objective To study the frictional resistance in the buccal segment between self-ligating brackets and archwires in the dry and artificial saliva states.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句