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水产养殖
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水产养殖
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水产养殖
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aquaculture
水产养殖
水产养殖有三重含义,一指一类技术,二指一门科学,三指一个产业。作为技术,是在控制条件下,为了增加产量而饲养或栽培水生生物的方法。作为科学,是研究水产养殖对象的生物学特性、生存规律及其与环境的内在联系、养殖理论与技术的一门应用性学科。作为产业,是利用适宜水域养殖水产经济动植物的生产事业。水产养殖业的发展不仅为人类提供大量优质的动物蛋白质和脂肪源,改善人类食物结构,解决人口日益增长对食物的需求起到了重要作用;同时,还促进了社会就业和经济发展,与国计民生有着重要关系。
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crime of loan fraud
crime of losing firearms without report
crime of losing weaponry
crime of luring a young girl into prostitution
crime of luring,staying or introducing prostitution
crime of making vindicative attacks on a witness
crime of maltreating prisoners of war
crime of manipulating the price of securities and futures trading
crime of medical negligence
crime of military defection
crime of misappropriating funds
crime of misappropriating public funds
crime of misappropriating specific funds and articles of the State
crime of misuse of management companies and securities authority for favoritism
crime of money laundering
crime of negligence
crime of negligence of duty
crime of negligence to destroy weapons and equipment, military installations and military communications
crime of negligent damage to cultural relics
crime of negligent homicide
crime of negligently causing another serious injury
crime of negligently causing a serious accident
crime of negligently providing substandard weapons and equipment, military installations
crime of non-disclosure and violation of the provisions of disclosure important information
crime of non-rescuing abducted, kidnapping women and children
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
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更新时间:2026/6/17 10:22:52