seat

座, 座位, 位子, 席位, 所在地

a space reserved for sitting (as in a theater or on a train or airplane); furniture that is designed for sitting on; any support where you can sit (especially the part of a chair or bench etc. on which you sit); a center of authority (as a city from which authority is exercised)

使坐下, 使就座, 为...设座于, 使就职

安装在底座上