compacted layer meaning in Chinese

坚实层
压实层

The structure of artificial bone was designed according to the long bone of people , the outer was compact layer , the inner was porous spongiosa layer
仿人长干骨的结构梯度进行材料设计：外层为致密层，内层为多孔松质层。
Through observing the interface of porosity hap sintered at 1050 , the gradient changing of pore size was observed that was like gradient structure of bone . in the compact layer there were a few about 50 y mpores and many about 5um micropores . in the porous layer there were many about 500um pores
致密层存在少量的尺寸为50 m左右的气孔和大量的尺寸为5 m左右的微孔，这是原料中残留有机物烧失以及粉末颗粒烧结不致密形成的；多孔层存在大量的尺寸为500 m左右的大孔，这是柠檬酸造孔剂烧失形成的，在大孔之间存在一些约50 m 、 100 m的气孔。