单词：raster glass measuring device
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Deep inside an industrial neighborhood in New York City is an ordinary building containing an extraordinary treasure. It is the home of The Neustadt Tiffany Glass Archive. It holds the worlds largest collection of Tiffany glass, with almost 250,000 p
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This is SCIENCE IN THE NEWS in VOA Special English. I'm Steve Ember. This week our program is about a mystery as old as time. Bob Doughty and Sarah Long tell about the mystery of time. If you can read a clock, you can know the time of day. But no one
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