名词
中文翻译：中岩
同义词：
['medium-grained rock', 'medium-sized rock例句：1. The engineer analyzed the geological data to determine the type of medium rock in the area.（工程师分析了地质数据，以确定该地区的中硬岩石类型。）']
例句：
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1. The engineer analyzed the geological data to determine the type of medium rock in the area.
工程师分析了地质数据，以确定该地区的中硬岩石类型。
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2.The construction crew used medium rocks to build the foundation for the new bridge.
施工团队使用中硬岩石建造了新桥的基础。
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3. The rocky terrain made it difficult for the team to move forward, but they persevered with the medium rock.
崎岖的地形使团队难以前进，但他们坚持使用中硬岩石。