It's a defense mechanism of the Christmas treeworm, most of which resides in a tunnel it carves into live coral.
这是圣诞树蠕虫的防御机制,它们中的大多数栖身在活珊瑚上挖出的“地道”里。
2
The commonality, flexibility and extensibility of the worm diffusion are limited, so an auto-generation model of worm diffusion strategy based on diffusion strategy tree is proposed.