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[underground] room, [underground] chamber


[煤炭科技英汉词典]

[underground] room, [underground] chamber
硐室
为某种专门用途在井下开凿和建造的断面较大或长度较短的空间构筑物。

是什么意思,[underground] room, [underground] chamber的解释,[underground] room, [underground] chamber的翻译