词汇	empirical date
释义	empirical date 经验数据
随便看	deep underground basing Deep Underground Command Center Deep Underground Communications System deep underground disposal deep underground engineering Deep underground metal mine Deep underground mining deep under-ground motion deep underground rock Deep Underground Sanguine System Deep Underground Space deep underground structure deep underground structures deep understanding deep underwater concrete mixing pile deep underwater foundation deep underwater missile deep underwater nuclear counter deep underwater nuclear counting device Deep Underwater Support Center deep unease deep unmaned submersible deep unmaned submersibledums Deep Unmanned Submersibles deep unminable coal seams