If the service goes away, the component is deactivated; and if a new service arrives, then a new instance is created and the service re-bound.

如果服务不可用了，组件也就失效了；如果一个新服务出现，那么就创建一个新的实例，并将该服务重新绑定。

youdao

Although we're quite a distance away from any of those muscle-bound ideas becoming everyday realities, it's good to at least see them on the horizon.

ENGADGET: Turing machine built from artificial muscles may lead to smart prosthetics