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...
等能量 、 等变形夯扩挤密矸石桩是一种地基加固新技术.Practical construction shows that equal energy, equal deformation tamping a.文章介绍了气动夯锤打桩的施工方法.This paper presents the construction method of pneumatic rammer piling.针对一台液压夯管锤,通过改变其供油压力,考察了其工作参数的...