The net effect of a ruffled border is to increase the cell surface area for contact with the collagen fibrils and apatite crystals being resorbed.是什么意思_The net effect of a ruffled border is to increase the cell surface area for contact with the collagen fibrils and apatite crystals being resorbed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句