送交者: boxer 于 2005-5-05, 10:52:21:
回答: 求教，有一个半径为R金属圆柱体 由 008 于 2005-5-04, 22:02:26:
Among all of the people who post in this forum, very few are majored in this kind of field. Outsiders tend to choose the most confusing one.
科学真理在大多掌握在少数人手中, since scientists are the unlucky minority everywhere.