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。
Lead ship
原声例句
经济学人（汇总）
中文百科
主导舰
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。
英语百科
Lead ship 主导舰
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![](/Images/godic/202501/23/Voyager_of_the_Seas_at_hakata_port5756.jpg")
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.