来自《耶鲁大学开放课程：生物医学工程探索第25集第25集》

materials that people are beginning to create.

更新型的材料
They're new in a variety of ways.

在很多方面都更先进
One of the ways they're new is

一方面这种新材料
that they don't require as much bone cement any longer.

不再需要骨水泥
This acetabular cup for example,

这个髋臼
is made of a ceramic which is very porous

使用一种多孔陶瓷制成
and which sticks to bone more naturally

相比过去的金属球窝
and more easily than the old metal cups used too.

能更自然更容易地贴合骨骼
Another difference in this design,

该设计的另一个不同点在于
is instead of having a metal head which moves against the--

它不再采用金属股骨头
a metal ball which moves against the polymer socket,

不再是金属股骨头与涂层球窝的运动
this one has a ceramic head.

它采用的是陶瓷股骨头