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| Arabia | |||
| Arabian Peninsula (全岛沙漠面积79.5万km²、其中鲁卜哈利沙漠面积约56万km²、占全岛沙漠面积的70.4%、为全球的第一大沙漠) | |||
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阿拉伯 半 岛 : 3 phrases in 1 subject |
| Desert science | 3 |
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