Alkaline phosphatase and collagen I usually expressed in the early stage of bone development while osteocalcin and bone sialoprotein in the late stage.是什么意思_Alkaline phosphatase and collagen I usually expressed in the early stage of bone development while osteocalcin and bone sialoprotein in the late stage.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句