And because there are billions of transistors in our circuit, we need an almost molecularly perfect system.

也因为我们的电路中有数十亿个晶体管，我们需要一个几乎完美的分子系统。

Chitin is molecularly similar to the cellulose we find in plants, but it's harder and more stable.

甲壳素在分子上与我们在植物中发现的纤维素相似，但它更硬、更稳定。