The damaged reactors have yet to be brought to a cold shutdown state.

受损的反应堆现在还没有达到可以冷关机的状态。

youdao

Only after that, he said, can efforts begin to prepare the plant's four troubled reactors for a cold shutdown.

只有在这之后，才能开始着手准备对受损的四个反应堆进行冷却关闭。

youdao

Workers are continuing to bring the plant to a cold shutdown by January.

BBC: Japan PM Naoto Kan announces resignation amid criticism

The Japanese government insists that the reactors are in a "cold shutdown" state and no longer releasing high levels of radiation.

BBC: Fukushima: Rat linked to outage at Japan nuclear plant

By now, all the reactors should have cooled down to cold shutdown.

FORBES: The Japanese Nuclear Power Crisis Deepens