由钢管焊接而成的相对永久性的海上平台。平台的腿由桩固定于海底。
A relatively permanent offshore platform made of welded tubular steel in which the legs are attached to the sea bottom by piles.
由钢管焊接而成的相对永久性的海上平台。平台的腿由桩固定于海底。
A relatively permanent offshore platform made of welded tubular steel in which the legs are attached to the sea bottom by piles.
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