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

单词	floor hole
释义	floor hole floor hole According to OSHA: any opening measuring less than 12 in. (30.5 cm) but more than 1 in. (2.5 cm) in its least dimension in any floor, roof, or platform through which materials but not persons may fall, such as a belt hold, pipe opening, or slot opening.
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