1. An important law was first discovered by Archimedes, who was a scientist who died over 2,000 years ago. 
   阿基米德首先发现了一个重要的定律。阿基米德是一个科学家，死于2000多年前。
2. Archimedes , a great physicist , discovered the principle of floating bodies. 
   阿基米德，一位伟大的物理学家，发现了浮体原理。
3. Archimedes' law can be explained here like this: When a cube is completely under water, if the weight of water which is pushed aside is greater than the weight of the cube. It will go up and stay on top of the water. If it is less than the weight of the cube it will go down in the water. If it is the same as the weight of the cube, it will neither stay on top nor go down. They have come to balance each other. 
   阿基米德定律可以这样解释：当一个立方体完全浸在水中时，如果排出的水的重量比该立方体的重量重，该立方体就会上浮然后停在水面上，如果排出的水重量比该立方体的重量轻，该主方体就会下沉到水底，如果水的重量与立方体的重量相等，该立方体将既不上升也不下沉，它们处于平衡状态。
4. the Roman siege of Syracuse (214-212 BC) was eventually won by the Romans who sacked the city (killing Archimedes). 
   （公元前214-公元前212）罗马军队包围锡拉库扎并最后占领城市（而且还杀死了阿基米德）。
5. One story says the Archimedes made a burning mirror to set fire to the Roman ships which were attacking Syracuse. 
   有一个故事说阿基米德制造了一个火焰镜，点烯了进攻叙拉古的罗马战船。

查看更多例句 相关情景会话

• 1. 阿基米德原理
  阿基米德原理 archimedes's law...安全系数Factor of Safety
  www.029edu.com - 相关搜索