沉船被海洋中没有空气的环境保管起来，躺在深水中的船只被保存得尤其完好。
A sunken ship lies in trust, preserved in the airless environment of the sea and those in deep water are especially well protected.
《深水港口法案》只适用于船只在深水港口的“某安全区”内卸货的情况。
The deepwater port Act applies to vessel discharges within "a safety zone" of a deepwater port and allows the same defenses as the Trans-Alaska Act.
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