The cellar deck is the lower deck on a semisubmersible drilling platform with two decks.
在具有两层甲板的半潜式钻井平台上，它是下甲板。
The "double-deck" type employs two separate decks of steel plate over the entire tank area.
双盘式浮顶在整个罐面积内有两层钢板。
The "double-deck" type employs two separate decks of steel plate over the entire tank area.
双盘式浮顶在整个罐面积内有两层钢板。
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