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海雾统计说明: 1.海洋站当日一个观测时次有雾即为一个零日。 2.海区雾日是以船舶纪录为主,同时参考本海区内海洋站纪录统计的,海区内一个观测时次有雾即为一个雾日。 3.轻雾（=）不统计在内。
Sea fog statistics: 1. Ocean Station on the same day when the fog was a zero-day observation. 2. The sea fog days are based on the ship records, and at the same time refer to the statistics of the marine stations in this sea area. 3 light fog (=) not included.