artificial cardiac valve造句

Diamond - like carbon gradient film on ti6a14v alloy substrate have been prepared by means of plasma source ion implanted - ion beam enhanced deposition ( psii - ibed ) . for potential applications as artificial joint materials and artificial cardiac valve materials , its trobological performance and hemocompatibility has also been evaluated in the present ph . d . thesis
本研究采用等离子源离子注入?离子束增强沉积技术( psii - ibed )制备了钛合金基类金刚石梯度薄膜材料，对类金刚石梯度薄膜这一新型人工关节材料和人工心脏瓣膜材料的生物摩擦学性能和血液相容性进行了研究和评价，研究了摩擦磨损对材料血液相容性的影响。
It's difficult to find artificial cardiac valve in a sentence. 用artificial cardiac valve造句挺难的