Technology combining genetic engineering of cells with chemical engineering to create artificial organs and tissues such as skin, bone, heartvalves, and cartilage for joints.
结合细胞遗传工程和化学工程以创造器官和组织如：皮肤、骨头、心脏瓣膜和软骨关节的技术。
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The oil pressure will force it up into the heartof the stack of valves.
石油的压力会迫使它上升到真空阀的中心处。
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Some 300,000 people were taking the drug when Afssaps pulled it from the market last November, saying it had little effect on diabetes and might lead to a dangerous thickening ofheartvalves.