operational

新系统已经完成测试，可以投入使用了。

The new system has been tested and is now ___operational.

医院的急诊室24小时运作。

The hospital's emergency room is 24 hours ___operational.

我们现在需要讨论的是实施方案，而不是理论构想。

We need to focus on the ___operational plan now, not just theoretical ideas.