Archimedes [,ɑ:ki'mi:di:z]
- Archimedes的基本解释
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n.
阿基米德
- 相似词
- 相关歌词
- Beleeka Doodle Day
- 拼写相近单词
- Archimedean
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Correctional checking formula of melt flow ratio in injection molding was obtained by introducing a correction coefficient β which reflected the complexity degree of mold cavity. The results show that, the maximum flow ratio of 486 can be obtained when injection pressure ranges from 150 MPa to 160 MPa in Archimedes spiral mold for PP, while maximum flow ratio of 419 can be obtained when injection pressure ranges from 160 MPa to 170 MPa for PE. There is a local fluctuation phenomenon for flow ratio and corresponding injection rate in square spiral mold when injection pressure of 100, 120 and 150 MPa for PP and 130, 140 MPa for PE are reached respectively,and this phenomenon is more serious for good fluidity of melt. The average flow ratio in Archimedes spiral mold is 6% larger than that in square spiral mold for PP, and 4% for PE, the average flow ratio of PP is 19% bigger than PE in Archimedes spiral mold, and 15% in square spiral mold. The influence of the cavity profiles on the melt flow ratio is more significant for good fluidity of melt.
研究结果表明:在阿基米德螺旋线模具中,PP在注射压力为150~160 MPa时取得最大流动比485,PE在注射压力为160~170 MPa时取得最大流动比419;在方形螺旋线模具中,PP在注射压力为100,120和150 MPa,PE在注射压力为130和140 MPa时流动比及所对应的注射速率出现波动,且流动性好的熔体波动更为严重;PP在阿基米德螺旋线模具中的流动比均值较其在方形螺旋线模具中大6%,而PE大4%;在阿基米德螺旋线模具中流动比均值PP比PE的流动比均值大19%,而在方形螺旋线模具中PP的流动比均值比PE的大15%;流动性好的熔体受模具型腔轮廓特征影响大。
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Archimedes Screw: A spiral propeller with a fixed axle at the centre invented by ancient Greek man Archimedes.
阿基米德螺旋:它是古希腊的阿基米德发明的固定于轴心的螺旋推进器。
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Starting on July 26th, researchers at the Stanford Synchrotron Radiation Laboratory in California , led by Uwe Bergmann, will attempt to read the final pages of the oldest known manuscript of Archimedes's work, the Archimedes palimpsest.
在尤。伯格曼的带领下,加利福尼亚的斯坦福同步加速器辐射实验室的研究人员将于7月26日尝试阅读目前所知的最早的阿基米德著作的手稿-《阿基米德》重写本-的最后几页内容。
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Archimedes:阿基米德
这些舱是用"阿基米德"(Archimedes)螺旋泵抽干的(几个世纪以前达.芬奇(LeonardodaVinci)发明的),使其在吃水线以下确保运转. 到明初前,中国人就已经用呼吸管和面具等设备用来潜水(9). 水下置石方时会有困难,但是他们良好的设备可以解决这一难题.
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Archimedes:(阿基米得)
我说被汽车辗过的人,等于是被数学、物理和化学辗过;我还可以说,他是被欧几里德(Euclid)、阿基米得(Archimedes)和拉瓦锡(Lavoisier)辗过. 人文科学由此赋予静态的数据活泼的生命,而不是把消逝的事件缩减为刻板的公式. 所以,
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Archimedes:阿基米德的故事太多
Aristotle,全才 | Archimedes,阿基米德的故事太多 | Columbus,专家犯错误
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Archimedes:螺旋苔藓虫属,阿基米德苔藓虫属
"Archigymnospermae","原始裸子植物" | "Archimedes","螺旋苔藓虫属,阿基米德苔藓虫属(C-P)" | "archipelago","群岛,列岛"
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Archimedes principle:阿基米德原理
根据阿基米德原理(Archimedes' principle)可知,饺子或肉丸的浮力就增大了,这时浮力大于重量,就浮起来了. 雌性激素和黄体激素是一般避孕药里的标准成分,不过,目前最大的问题是,科学家至今还不知道,需要给妇女注射多少剂量的雌性激素和黄体激素最适合.
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