“keel block”的概念、定义、翻译、参考文献-科学参考

单词	keel block
释义	keel block [`kēl ´bläk] ^{CIVIL ENGINEERING} A docking block used to support a ship's keel. ^METALLURGY A simple shape from which a test casting is made in the form of a large head, which is removed and discarded, with a keel on the bottom.
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