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manhole cover
archit. 升降口盖
ecol. 检査井井盖
mech.eng. 【建】检查井盖
met. 人孔盖
tech. 进人孔盖; 检查井盖; 探井盖; 阴沟盖; 人孔盖
manhole cover
: 28 phrases in 5 subjects
Chemistry1
Nautical5
Shipbuilding3
Space1
Technology18