But because the form of the artificial bones is very complicated, it is difficult to adopt the traditional method for carbon/carbons composites. Moreover the preparing period is very long, and the cost is very high.

• 但是由于人工骨骼形状比较复杂，采用化学气相渗透(CVI)或液相浸渍等传统的碳/碳复合材料制备方法很难制备出形状复杂的碳/碳制件，且制备周期较长，成本高。