英语词汇“primary beam”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	primary beam
释义	DictionarySeeprimary primary beam primary beam See beam. main beam A principal beam used to carry a load, which transmits the load directly to the columns. MedicalSeebeamLegalSeePrimary
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primary beam