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潜水作业
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潜水作业
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diving operation
潜水作业
人类或由人类控制的机械装置为完成水中捕获、查勘、打捞、施工及军事行动等进入水体、完成预定任务后返回水面所进行的水下活动。泛指人类一切有意识、有目的水下行为。
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grassland irrigation cycle
grassland irrigation efficiency
grassland irrigation quality
grassland irrigation quantity
grassland irrigation uniformity
grassland irrigation water use efficiency
grassland landscape
grassland law
Grassland Law of the People’s Republic of China
grassland leisure tourism
grassland livestock
grassland-livestock system coupling
grassland mammals
grassland management
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grassland nationalities
grassland native plants
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grassland of China
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Grassland People
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grassland plant community structure
grassland plant pathosystem
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