单词：vibration axis
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New NASA Mars Mission Will Study Deep Under Planets Surface NASA, the American space agency, is sending a robotic scientist to Mars. It will dig deeper than ever before to study the planets geological activity. The Mars InSight spacecraft launches Ma
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axis, ['ksis] n 轴（虚构之线，如地轴，坐标轴） 【记】i象虚线－虚轴
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid
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By Gary Thomas Washington 16 October 2006 A Japanese woman reads an extra special edition newspaper reporting about North Korea's nuclear test, distributed in downtown Tokyo, October 9, 2006 North Korea, which recently conducted an underground nucle
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1. Cyber Sickness 晕屏症 Also called digital motion sickness, symptoms that range from headaches to woozy feelings can occur when you quickly scroll on your smart phone or watch action-packed video on your screen. 这种病也被称为数字晕车，
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Why Don't Snorers Wake Themselves Up? Anyone who's ever slept in the same room as a loud snorer knows how infuriating it is to have to suffer through all that noise while the offending party remains blissfully oblivious and asleep. Loud snorers can w
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