The destructive and malignant neoplasms of chorionic epithelium often arise from hydatidiform moles.破坏性和恶性的绒毛膜上皮癌往往是葡萄胎所引起.Purpose To explore the CDFI diagnostic value for the hydatidiform mole.目的探讨彩色多普勒血流显像(CDFI)对侵蚀性葡萄胎...
他们几乎完全与外界绝缘了.They were almost completely cut off from the outside world.请检查一下我屋子里电线的绝缘情况.Please examine the insulation of the electric wires in my house.电线通常以一层橡皮或纸绝缘.One often insulates telephone wires by a covering of ...