美国的104座商用核电站在老化，而且历年来很多核电站已经有过严重问题。
The 104 commercial nuclear plants in the U. s. are getting old, and many have had serious problems over the years.
商用低钴合金被用于降低与核电站反应和昂贵的钴基焊料相关的成本。
Commercial low cobalt hardfacing alloys are being evaluated in efforts to reduce the costs associated with nuclear plant activation and expensive co-base weld consumables.
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