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冰斗〔坑〕; 圆形山凹〔洼地,场地〕; 环形排列; 环形物 | |||
圆形山谷冰炕; 圆形场地 | |||
冰雪坑【地质】 | |||
圈椅状谷 | |||
冰斗 | |||
圆形山谷 | |||
环绕状陡山壁; 环壁 | |||
环行物; 圆形山谷; 圆形场; 圆环; 冰坑; 盆地谷 | |||
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冰斗 |
cirque : 30 phrases in 8 subjects |
Agriculture | 2 |
Engineering geology | 15 |
Environment | 1 |
Hydroelectric power stations | 1 |
Mountaineering | 1 |
Oil / petroleum | 1 |
Space | 1 |
Technology | 8 |