Metalsmiths knew how to detect forgeries of precious metals by measuring their density, using Archimedes' method of submersion in water to measure volume.
当时的金属匠利用阿基米德把物体浸在水中测量体积的方法，知道如何检测假的贵金属物品。
2
The instrument is based on the Archimedes law, and the basic method of mass measurement and pressure sensing.
主要采用了阿基米德原理，质量测定和压力传感的基本方法。
3
This paper makes a meshing analysis about the spiroid gearing. Using the method of equivalent worm gearing, the assembly condition of Archimedes spiroid gears has been obtained.