All employees at the submarine base require security clearance.

所有潜水艇基地的雇员必须得到安全部门的审查许可方可录用。

《牛津词典》

The Chinese navy has constructed what appears to be a demagnetization facility near an East Sea Fleet submarine base.

中国海军在一个东海舰队潜艇基地附近显示已经建成一处消磁站。

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The incident took place around 75 miles off Hainan Island, where China - which claims a 125-mile EEZ - has built an underground nuclear submarine base.

事件发生在海南岛外大约75海里处，在那里中国-主张125海里专属经济水域（EEZ）-已经建造一座地下核潜艇基地。

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It was a pattern which Sheridan would repeat many times - serving jail terms for refusing to pay the poll tax and a fine after taking part in blockades at Faslane nuclear submarine base.

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The submarine headed back to its base on the Kola Peninsula, by the Barents Sea, which took five hours.

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On Hainan Island it has built a new, large naval base with underground submarine pens, which can support both strategic and nuclear-attack submarines.

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