反复捶打，直到面团略有弹性。
因为内靴的材质略有弹性，它包裹穿着者的脚部，增加舒适度的同时也更合脚。
Because the material of the inner-bootie is slightly elastic, it wraps itself around the wearer's foot and enhances both the comfort and fit of the shoe.
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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