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鱼类亲体量
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鱼类亲体量
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鱼类亲体量
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fish spawning stock biomass
鱼类亲体量
鱼类种群在繁殖季节内参加生殖活动的雌、雄个体的数量。鱼类种群生殖潜能的重要指标之一,也是反映渔业资源种群动态的主要变量之一。
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navigating in polar regions
navigating in polar waters
navigation
Navigation Acts
navigation agent
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navigational GNSS receiver
navigational instruments
navigational lighting aid station
navigational lighting aid system
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navigation and positioning
navigation and positioning on the sea
navigation and search on complex network
navigation aqueduct
navigation brain system
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