Methods:To observe the gaps between material and the walls of canals by scanning electron microscope ,the apical sealing ability of material by dye penetration method.是什么意思_Methods:To observe the gaps between material and the walls of canals by scanning electron microscope ,the apical sealing ability of material by dye penetration method.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句