单词：hopper vibrator
hopper vibrator的用法和样例：
例句
- It may be an environment-simulation device such as a centrifuge or electro-mechanical vibrator.可能是一种环境模拟装置，如离心机或机电式振动台。
单词：hopper vibrator 相关文章
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欢乐美语
Called grass hopper mice have an unusual favorite food. Not grass hopper, no, they really like scorpions. You can see theproblem. But the mice shrug off any scorpion things(stings).And the new study shows how. Researcher injected common house mice of
Scientific American(十)月
Edward Hopper's Simple Paintings Hold Special Meaning for Americans VOICE ONE: I'm Shirley Griffith. VOICE TWO: And I'm Doug Johnson with People in America in VOA Special English. Today we tell about artist Edward Hopper. He painted normal objects an
名人轶事
PEOPLE IN AMERICA - Edward Hopper's Simple Paintings Hold Special Meaning for AmericansBy Sarah Randle and produced by Mario Ritter Broadcast: Sunday, September 24, 2006 VOICE ONE: I'm Shirley Griffit
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雅思英语
The Ants and the GrasshopperTHE ANTS were spending a fine winter's day drying grain collectedin the summertime. A Grasshopper, perishing with famine, passedby and earnestly begged for a little food. The Ants inquired ofhim, Why did you not treasure u
英语美文
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英语美文
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经济学人综合
A new app promises to save travellers money by pinpointing the cheapest days of the year to take a flight. 一款新的手机应用能确切指出一年中乘坐航班最划算的时间，从而为旅客省钱。 Hopper, available in the App Store si
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