“topping lift”的概念、定义、翻译、参考文献-科学参考

单词	topping lift
释义	topping lift [`täp·iŋ ´lift] ^{NAVAL ARCHITECTURE} A rope or chain extending from the head of a boom or gaff to a mast or to the vessel's structure for the purpose of supporting the weight and permitting the boom or gaff end to be raised or lowered.
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