单词：radial acting hydrodynamic mechanical seal
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AGRICULTURE REPORT –August 20, 2002: Exploding Meat By George Grow This is the VOA Special English AGRICULTURE REPORT. American scientist Morse Solomon has developed an unusual method to make meat s
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音乐咖啡厅:Some Any - Mechanical heart 相关介绍：各国都有各种各样的乐坛新秀选拔大赛，Some Any这支一男一女的流行团体则是来自德国的一支通过选秀节目发迹的乐团，两个人分别是年仅十八岁的
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New Artificial Skin Feels Like Real Skin 新人造皮肤体感已接近真正皮肤 Some recently developed mechanical hands can be controlled by thoughts. But people who wear them must use their sight to know what they are touching. So scientists in
2015年VOA慢速英语(一)月
Mechanical problem 2 机械故障2 A: Why have you stopped production? A:你为什么停产？ B: We've had a few problems. One of the bolts has worked loose and a blade has snapped off. B:有点问题。有个螺栓松了，一个刀片折断了。
职业技术英语口语
DAVID GREENE, HOST: This week, we have been exploring the realities of modern work. A new NPR/Marist poll found a lot of confidence in the future among American workers. A vast majority said they actually don't feel that threatened by the economic fo
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OK, if these principles are so powerful, you might be thinking, why are they not commonplace in business? 好了，既然这些法则如此强大，你可能会想，为什么在商界不常见到它们呢？ Why do we not use these words every day? 为
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