在分析狭水道船舶碰撞事故的发生和避碰行为的基础上，应用模糊集理论，提出了船舶在狭水道航行的碰撞危险性评价模型。
On the basis of analysis of Ship's collision accident and anti collision actions, an evaluation model is presented for ship's collision risk in narrow channel by applying fuzzy mathematics theory.
从事捕鱼的船舶，不应妨碍在狭水道或航道以内航行的任何其他船舶的通行。
A vessel engaged in fishing shall not impede the passage of any other vessel navigating within a narrow channel or fairway.
帆船或者长度小于20米的船舶，不应妨碍只能在狭水道或航道以内安全航行的船舶通行。
A vessel of less than 20 meters in length or a sailing vessel shall not impede the passage of a vessel which can safely navigate only within a narrow channel or fairway.
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