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Large cracks formed in this way are called leads, because they are wide enough to " lead" a ship.
以这种方式形成的大裂缝被称为引线,因为它们的宽度足以引导船只。
主导舰(船)(英语:Lead ship)又称“命名舰”或“级首舰”,是根据相同整体设计的船系或船级而建造的第一艘舰(船)只。该术语适用于军舰或大型民用船只。
The lead ship, name ship, or class leader is the first of a series or class of ships all constructed according to the same general design. The term is applicable to military ships and larger civilian craft.
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