Waves of deafening sound come from a steel pipe spiraling over the scaffolding, within which a set of invisible iron balls circulate endlessly around the exhibition space.
一阵阵震耳欲聋的声响冲击着观众的耳膜，声音来源于脚手架支撑的钢管，其中的封闭铁球不停地沿着展厅四周盘旋滚动。
Look out, Harry Potter: researchers have advanced the study of cloaking-rendering objects invisible by forcing light waves to act as if the objects weren't there.
哈利·波特，请注意：研究者们在隐身衣(隐身衣通过对光波的作用，使得物体看起好像来并不存在)方面的研究又有了进展。
Look out, Harry Potter: researchers have advanced the study of cloaking-rendering objects invisible by forcing light waves to act as if the objects weren't there.
哈利·波特，请注意：研究者们在隐身衣(隐身衣通过对光波的作用，使得物体看起好像来并不存在)方面的研究又有了进展。
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