英语词汇“lightening hole”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	lightening hole
释义	lightening hole lightening hole [′līt·niŋ ‚hōl] (civil engineering) An opening cut into a strengthening member that decreases its weight without significantly altering its strength. lightening hole A hole cut in a piece of structural material in a relatively unstressed region to lighten the structure.
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