In order for a design to work well we have to have every component there.

如果要使一种设计运转良好,这个设计的零部件就必须完整可靠

耶鲁公开课 - 金融市场课程节选

You can imagine that there are many requirements that a device like this has to meet in order for it to be a good artificial hip and we'll talk about those and how the design of these has changed over the years and what we can expect in the future.

你可以想象,这种装置对技术要求极高,这样它才能成为,一个好的人工髋关节,我们会讲到这些,以及这些年来这项技术的设计有哪些改进,在未来会有怎样的创新

耶鲁公开课 - 生物医学工程探索课程节选