In distributed measurement and control system with bus structure, master slave communication may be replaced by race communication, when real time and burst are needed.

在总线结构的分布式测控系统中，当系统实时性要求较高、突发性较强时，主从通信方式往往不能适应需要，而需要采用竞争式通信。

youdao

It was perhaps the revelation (or confirmation) of Jefferson's amours with his slave Sally Hemings, and more broadly the changed attitude of Americans to race, that freed them from the waxworks in which they had been imprisoned.

ECONOMIST: George Washington