Mechanical structures in the Other World were often not as precise as similar products on Earth.
It was not because the material processing technology was not up to par.
It was because the Other World possessed spirit energy, and its molecular activity of matter was far more intense than that on Earth. Hence, materials would easily and visibly become deformed.
If the mechanical structure was too precise and seamless, leaving no room for reconfiguration, it would lead to frequent failures, scrap, or even explosions on the spot.
Hence, there were a lot of gaps between the crystal engines and the Golden Roc's giant propellers.
Although the gaps were only as thick as a strand of hair, the spirit magnets that were surging out of Meng Chao's body could be absorbed like translucent mercury.
Once the thousands of spirit magnets gathered inside Golden Roc, they turned into small snakes.
