A listener in Abuja, Nigeria, Named named Okorie, wants to know more about fish pond farming.
一位尼日利亚阿布贾的听众想更多地了解鱼类的鱼塘养殖.
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Fish ponds temporarily occupied by works areas shall be reinstated back to fish ponds.
应把工程范围暂时占用的鱼塘恢复原状.
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There were 22000 hectares of agriculture crops affected and 7338 hectares of fishery ponds polluted.
农作物受害面积2.2万公顷,污染鱼塘7338公顷.
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Experts say ponds a surface area smaller than 100 square meters may not be profitable.
根据专家的说法,表面积小于100平方米的鱼塘将无法盈利.
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Pound monitoring includes the parameter of entironment monitoring and guarding against theft.
鱼塘监测包括水产养殖生态环境指标监测及防盗监测.
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Save as is provided in 5.2.2, the buffer zone of pond culture and marine.
除5.2.2另有规定外, 鱼塘养殖必须保留不少于2米的缓冲区,而海水网箱养殖.
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Landscape ponds filled with village, lunar month is the season of spawning female fish.
山水注满了村口的鱼塘, 农历三月正是母鱼产卵的季节.
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But those larger than 1 hectare may cost too much and be difficult to manage.
但是那些表面积大于1公顷的鱼塘可费用太大且难于管理.
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综合各塘的情况,在藻类生长旺盛的曝气养鱼塘中,由于溶解氧较高,水力停留时间长,对有机物降解的贡献最大。
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苏州、扬州两地畜禽粪便污染、生活污染、化肥污染和精养鱼塘污染均占一定的比例。
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畜禽粪便污染源、生活污染源、化肥污染源、精养鱼塘污染源流失污染物分别占总量的29.49%、50.86%、16.68%和2.98%;
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