Royal Mint used an advanced picosecond laser to imprint the intricate designs.

皇家铸币厂使用先进的皮秒激光来印刻复杂的设计。

These days, we've got a lot of different lasers, the new picosecond lasers work much better than our older lasers.

现在，我们有很多不同的激光仪器，新的皮秒激光器比我们旧的激光器工作得更好。