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池塘生态工程
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池塘生态工程
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农学
池塘生态工程
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ecological engineering in aquacultural ponds
池塘生态工程
在水产池塘养殖过程中,应用生态学原理和各种生态工艺技术,分级多层利用空间、时间及营养生态位的系统工程体系。目的是提高池塘养殖水产品产量和品质。
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ballistic verification of judicature
ballistite
ballistocardiography
ballistospore
ball knot
ball lens
ball line picking
ball mill
ball mill work index
balloelectric
Ball of wool
ballometer
ballonet
balloon
balloon astronomy
balloon-based astronomy
balloon-based IR astronomy
balloon-based UV astronomy
balloon-based X-ray astronomy
balloon-based γ-ray astronomy
balloon-borne astronomy
balloon-borne instrument
balloon-borne IR telescope
balloon-borne photometer
balloon-borne spectroscope
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