Now, of course the smart choice would be to just take the flat unit disk.
当然了，最佳选择是用单位圆盘。
Viewed face on, it would look like a smooth, flat disk with little spiral structure.
面对看，它看起来像一个平稳，很少有螺旋结构扁平盘。
Shape it into a flat disk and wrap in plastic. Chill it for an hour.
把它放在平底盘中包上塑料膜冷却一个小时。
A flat disk of metal ready for stamping as a coin; a coin blank.
硬币坯，金属坯打上戳记后用做硬币的一种水平金属圆片；
A flat disk of metal ready for stamping as a coin; a coin blank.
硬币坯，金属坯打上戳记后用做硬币的一种水平金属圆片；
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