英语词汇“safety ladder, emergency ladder”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典-复社网

单词	safety ladder, emergency ladder
释义	safety ladder, emergency ladder 安全梯; 立井凿井时，悬吊于井筒工作面上方，供紧急情况下人员安全升井的金属梯。
随便看	polder land polder mitton polder model polder models polderne polder reclamation polders Polder's tensor permeability poldervaartite pold-gate poldi Poldi hardness tester poldine Poldine Methosulphate poldine methyisulfate poldine methylsulfate Poldine Methyl Sulfate poldine metilsulfate Polding, John Bede poldi-pezzoli poldi-pezzolis Poldnevitsa -pole pole pole a boat

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