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This was an emotional day. The ceremonies honoring the fortieth anniversary of D day became more than commemorations. They became celebrations of heroism and sacrifice. This place, Pointe du Hoc, in itself was moving and majestic. I stood there on that windswept point with the ocean behind me. Before me were the boys who forty years before had fought their way up f rom the ocean. Some rested under the white
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1. 已知梁的弯曲刚度 EI 为常数,今欲使梁的挠曲线在 x=l/3 处出现一拐点,则比值 Me1/Me2 为:
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上海交通大学:《Design and manufacturing(ME371、ME337)》课程教学资源(讲义)Lecture-0 Course Introduction
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上海交通大学:《Design and manufacturing(ME371、ME337)》课程教学资源(讲义)Lecture 7 Kinematic Analysis of Mechanisms
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上海交通大学:《Design and manufacturing(ME371、ME337)》课程教学资源(讲义)Lecture 5 Graphical Linkage Synthesis
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上海交通大学:《Design and manufacturing(ME371、ME337)》课程教学资源(讲义)Lecture 3 Planar Linkages
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上海交通大学:《Design and manufacturing(ME371、ME337)》课程教学资源(讲义)Lecture 13 Bearings
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上海交通大学:《Design and manufacturing(ME371、ME337)》课程教学资源(讲义)Lecture 12-III Gear design
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上海交通大学:《Design and manufacturing(ME371、ME337)》课程教学资源(讲义)Lecture 12-II gear train
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1. I see. 我明白了。 2. I quit! 我不干了! 3. Let's go! 放手! 4. Me too. 我也是。 5. My god! 天哪! 6. No way! 不行! 7. Come on. 来吧(赶快) 8. Hold on. 等一等。 9. I agree。 我同意。 10. Not bad. 还不错。 11. Not yet. 还没。 12. See you. 再见。 13. Shut up! 闭嘴! 14. So long. 再见。 15. Why not? 好呀! (为什么不呢?) 16. Allow me. 让我来。 17. Be quiet!
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