虽然听起来很疯狂，但事实上这种机器早已问世，并被应用于“擦除”潜水艇和太空飞船上的空气中的CO 2。

This is not as mad as it sounds. After all, such machines already exist: they are used to "scrub" carbon dioxide from the air on board submarines and spacecraft.

youdao

虽然听起来很疯狂，但事实上这种机器早已问世，并被应用于“擦除”潜水艇和太空飞船上的空气中的CO 2。

This is not as mad as it sounds.After all, such machines already exist: they are used to "scrub" carbon dioxide from the air on board submarines and spacecraft.

youdao