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1·Historically, the system has played a positive role in minimizing losses incurred through the perils of sea and promoting Marine transportation business.

历史上，海难救助制度对于减少海上风险带来的损失以及促进海运事业产生了积极的作用。

2·Marine losses refer to the ones that are caused to the insured cargo during sea transport by the perils of the sea. They include Total loss and Partial loss.

海上损失——指被保险货物在海洋运输中，因遭受海上风险而引起的损失，包括：全部损失和部分损失。

3·Sea towage faces the same sea perils as other Marine services. The special operating mode makes its performance more risky, which endangers lives and properties at sea as well.

作为一种海上作业，海上拖航同样也面临海上风险，这种风险常因为它特殊的作业方式而提高，从而危及海上人身财产安全。