In the Ice Age Apocalypse, I Hoarded Billions of Supplies Chapter 1777: Technology Advancing by Hundreds of Years

That energy core was only about a meter in diameter. Compared to the massive size of the ultra-large mechanical lifeform, it even appeared somewhat petite. Zhang Yi couldn't make head or tail of it; it was seamless, and he couldn't even see any traces of machinery. Even when zooming in with smart devices to observe, no polishing marks could be seen, as if it had been naturally born. As for the…