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    首页/CEFR/C1/Vocabulary/US/operation ·noun/operation ·noun (WORK)

由于停电,备用发电机现已运行。

The backup generators are now in ___operation due to the power outage.

沿海地区有几台风力涡轮机在运行。

Several wind turbines are in ___operation along the coast.

实验性反应堆计划下周开始运行。

The experimental reactor is scheduled to start ___operation next week.

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