Their guns are equipped with a special device that emits laser beams each time a Marine pulls a trigger.

VOA: standard.2010.04.06

It was implanted into the first patient, a gentleman in Kentucky, and he stayed alive for a period of time with this device replacing his heart.

第一个植入这个人工心脏病人是,住在肯塔基州的一位先生,他在移植手术后,存活了一段时间

耶鲁公开课 - 生物医学工程探索课程节选

We talked about it last time, a rhythmic device.

我们上次说到过,一个节奏技巧

耶鲁公开课 - 聆听音乐课程节选