In situ resource utilization
(重定向自ISRU)
In space exploration, in-situ resource utilization (ISRU) is defined as "the collection, processing, storing and use of materials encountered in the course of human or robotic space exploration that replace materials that would otherwise be brought from Earth."
ISRU is the practice of leveraging resources found or manufactured on other astronomical objects (the Moon, Mars, asteroids, etc.) to fulfill or enhance the requirements and capabilities of a space mission.