设计硅芯片模仿人的器官听上去是异想天开。Designing silicon chips to mimic human organs sounds fanciful.硅酮隆胸植入物a silicone breast implant地球主要由铁、硅等物质构成。The Earth is made mainly of iron and silicon and things like that....
The radial displacement must be accompanied by a circumferential force.径向位移必须伴有圆周力.Burns that are circumferential are difficult to position.环形烧伤的体位很难确定.The circumferential normal stress is tensile.周向正应力是张性的....