steep grade

短语词组

短语

• steep down grade 陡下坡
• steep -grade mine 急倾斜矿井
• steep p grade 急倾斜
• culvert on steep grade 陡坡涵洞
• steep grade mining 陡帮开采
• sustained steep grade 持续陡坡
• a steep grade 陡坡
• long steep grade 长大坡度
• Hurley Steep Grade T -Shirt 赫利陡坡
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