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history of Oman
释义
history of Oman
Encyclopedia
历史学
阿曼历史
释
history of Oman
阿曼历史
阿曼原名马斯喀特素丹国。1970年8月改名为阿曼素丹国(简称阿曼)。4000多年前被两河流域的苏美尔人称为马干国。位于阿拉伯半岛东南部,扼波斯湾通往印度洋的门户。面积30.95万平方千米,人口455.9万(2018)。居民绝大部分是阿拉伯人,信奉伊斯兰教,其中90%以上属伊巴德教派。官方语言为阿拉伯语,通用英语。首都马斯喀特。
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risk emergency treatment plan for tunnel and underground engineering
risk estimation of tunnel and underground engineering
risk evaluation method of tunnel and underground engineering
risk evaluation of blasting
risk evaluation of tunnel and underground engineering
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risk identification for immersed tunnel
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risk identification of biological invasion
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risk identification of tunnel and underground engineering
risk level of agrometeorological disasters
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Risk Management
risk management
risk management and classified protection
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