“替代物”的英语？

采取一种自发集结方式我们生产出人类皮肤替代物.Using a self - assembly approach, human skin substitutes were produced.所以在植入物方面有了新的替代物,主要是碳酸化羟基磷灰石水泥(CHC)及同种异体骨 ( alloglaft ) 和自体骨(autoglaft).Replantation objects are replaced with Carbonated Hydro...