The Initial Operational Capability milestone determines whether the product is ready to be deployed into a user acceptance environment.

初始的操作能力里程碑确定是否可以将产品部署到用户能够接受的环境中。

youdao

The signals indicate that the spacecraft bus is functioning normally and ready to begin orbital maneuvers and operational testing.

此信号表明，该卫星运转良好且准备好开始轨道演习和操作测试。

youdao

How it could happen: There are currently more than 23, 000 nuclear weapons in the world, of which 8, 000 are currently operational and 2, 000 are on high alert and ready to launch on short notice.

它是怎样产生的：目前在世界上有超过23000种的核武器，其中有8000种已在使用中，还有2000种正处于高度戒备状态，随时准备发射。

youdao

Full sea trials of the new lifeboat will be held later this year and the first operational craft will be ready in 2013.

BBC: New Montrose lifeboat after ?1.5m donation

It will take about three months for Nasa engineers to test the platform and get it ready for use at its operational altitude of 705km.

BBC: Lift-off for latest Landsat mission

But ATK and Astrium believe their experience means they could have the 90m-high (300ft) Liberty rocket ready to fly by 2013, and operational with astronauts on board by 2015.

BBC: New rocket could lift astronauts