名词
中文翻译：人孔井梯级
同义词：
['manhole ladder', 'manhole access', 'manhole staircase']
例句：
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1.The construction crew had to remove the old manhole steps before they could start work on the new road.
施工队在开始新路工程之前，必须先拆除旧的人孔井梯级。
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2. The engineers used manhole steps to inspect the underground pipeline system.
工程师们使用人孔井梯级来检查地下管道系统。
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3.The maintenance team replaced the worn manhole steps with new ones.
维修团队用新的人孔井梯级替换了磨损的梯级。