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鱼类性比
释义
鱼类性比
Encyclopedia
农学
鱼类性比
释
sex ratio of fish
鱼类性比
鱼类种群内部雌雄鱼数量比。又称鱼类性结构。是种群结构特点和种群动态的重要指标之一,也是渔业资源研究中必须查明的重要内容。
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subsea christmas horizontal tree
subsea christmas tree
subsea christmas vertical tree
subsea cluster system
subsea compressor
subsea control module
subsea dry-type tree
subsea electrical flying leads
subsea fishing protection structure
subsea horizontal connector
subsea hydraulic flying leads
subsea manifold
subsea metering system
subsea mixed-type tree
subsea multiphase meter
subsea oil & gas production system
subsea pipeline
subsea pipeline corrosion control
subsea pipeline displacement
subsea pipeline end manifold
subsea pipeline pre-heating
subsea pipeline process
subsea pipeline put into production
subsea pipeline structure
subsea power distribution unit
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更新时间:2026/1/15 5:46:06