想像下将一个保龄球在一个二维的弹簧垫子表面滚动的情形。
Picture what it would be like to roll a bowling ball onto the two-dimensional surface of a trampoline.
为了解释弹性成像，Ophir把机体比作一张弹簧垫，但“一张由数百万个小弹簧组成的夸张垫子，并且每个弹簧都略有差别。
To explain elastography, Ophir likens the body to a box-spring mattress, but "a crazy mattress made out of millions of small springs and each one is a little different."
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