What if they had some of the same capabilities that an abalone shell did, in terms of being able to build really exquisite structures at room temperature and room pressure, using non-toxic chemicals and adding no toxic materials back into the environment?
生命を持たない物体が アワビの貝殻と同じ能力をもつ つまり 室温 大気圧下で 無害な化学物質を使って 精巧な構造物を作る能力をもち 有害な物質を 環境に出さないとしたらどうでしょう？