目前，对船舶冰区安全锚泊的研究大多停留在经验方法。
Currently, the study of ship anchoring in ice zone mostly remains on empirical methods.
于此同时，我国很多港口的拥挤现象也越来越严重，导致船舶在港的非生产性停留时间很长。
At the same time, the crowding phenomenon in ports is also becoming increasingly serious, which leads to unnecessary nonproductive stay in port.
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