图片来源：康斯坦丁·米哈尔切夫斯基/俄新社
That seemed crazy to me when I walked in too. That whole industry got lost because it really wasn't scaling. It was trying to appeal to a whole number of hobbyists. When I came in here, I realized that we really didn't 3D print those aligners—that we were 3D printing molds and vacuum-forming a plastic over them.
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