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and when you touch it, you have to really push very hard to move that anvil across the screen, and yet you touch the ping-pong ball very lightly and it just scoots across the screen.
当你推铁砧的时候,你必须用力推 才能挪动它到屏幕另一端. 然而,你只需要轻轻的碰一下乒乓球, 它就会快速的滑过屏幕.
hiroshi ishii and his group at the mit media lab took a ping-pong table and placed a projector above it, and on the ping-pong table they projected an image of water with fish swimming in it.
hiroshi ishii以及他的同事在mit媒体实验室搞了这么一样东西 他们找到一张乒乓球桌 并且在上面放置一台投影仪 通过投影仪 在乒乓球桌上投射出一个水面 上面有鱼儿在游动
(b) welfare items for field offices, including gym equipment and other sports items; recreation and entertainment equipment and supplies such as television sets, ping-pong tables and projectors; library items such as books, magazines and dvds; and other welfare items ($198,300);
(b) 外地办事处的福利项目，包括健身器材和其他运动项目；康乐及娱乐设备和用品，如电视机、乒乓球桌、投影仪、书籍、杂志和dvd等图书馆项目，以及其他福利项目(198 300美元)；