Upon descent, alarms went off telling the astronauts that the automatic guidance system was steering the lander toward a boulder-strewn crater instead of a relatively flat landing site called the Sea of Tranquility.

VOA: standard.2009.07.16

Again, in the context of a specific tissue site, in this case it's the nervous system.

当然又是放在某种组织当中来说,这次是在神经系统

耶鲁公开课 - 生物医学工程探索课程节选

Again, in the context of a specific tissue site, in this case it's the nervous system.

当然又是放在某种组织当中来说,这次是在神经系统

耶鲁公开课 - 生物医学工程探索课程节选