subtleadj.微妙的;敏锐的;不明显的;精细的;狡猾的
subtle sandstone隐伏砂岩体
subtle reservoir隐蔽油气藏
subtle reasoning丝丝入扣的推理
subtle influence微妙的影响
subtle prejudice微妙偏见
subtle reservoirs隐蔽油气藏
subtle philosophy深奥的哲学
subtle assignment巧设任务
subtle and concise婉约
subtle workmanship精湛的工艺