"One of the key elements here was flattening the hierarchy in the operating room so that everybody, the scrub tech,the nurse, the surgeon,the anesthesiologist, whomever it is in the operating room could bring up any concerns they had about the patient."

VOA: special.2010.10.20

If we build an engine for a car or anything else, it almost always is going to have some key element that's operating in a cycle, otherwise it won't keep going, right.

如果我们为一辆汽车，或其他什么东西制造一台引擎,它总要有一些关键，要素来形成循环。

麻省理工公开课 - 热力学与动力学课程节选