One kind of cellular communication occurs by similar mechanisms to what we were talking about.

细胞通讯中的一种,与我刚才讲过的信号转导的机制相似

耶鲁公开课 - 生物医学工程探索课程节选

It works by a control mechanism called negative feedback, and the thermostat is measuring the temperature and then sending a signal to a heater somewhere.

是通过一种叫做负反馈的控制机制,探测器测量温度,再把信号传给加热器

耶鲁公开课 - 生物医学工程探索课程节选