相关单词临近词steepen, steep, steep sharply turned moldboard, Steeping Barley with Warm Water, steeply -inclined narrow vein, Steeply-inclined thin orebody, steep seam with strong outburst, steep Trendelenburg' s position, steeply--inclined coal seam, steeped in ignorance/prejudice, steep and extra-thick coal seam, steep-sided characteristic curve 返回 steep-to