英语词汇“safety ladder, emergency ladder”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	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	orthoplocal embryo orthoploceous cotyledon orthoploid orthoploidy orthoplumbate ortho plumbate ortho-plumbate orthoplumbic acid ortho plumbic acid ortho-plumbic acid orthopn ortho-position orthopositronium ortho positronium ortho-positronium orthopotic and training instrument orthopoxviral orthopnea Orthopnea and Paroxysmal Nocturnal Dyspnea orthopnea position orthopnea position,orthopneic position orthopneas orthopneic orthopneic position orthopnic