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pond bio-floating bed
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pond bio-floating bed
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农学
池塘生物浮床
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pond bio-floating bed
池塘生物浮床
以水生植物为主体,以支架浮体等为载体,运用无土栽培技术原理,构建的一种用于池塘养殖水质调控的生态工程。
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radioactive forcing
radioactive furrow fertilization
radioactive gas detection
radioactive geophysical prospecting
radioactive heat
radioactive iodine
radioactive ion beam
radioactive ion beam line
radioactive ion beam reaction
radioactive isotope
radioactive isotope hydrogeology
radioactive isotope power sources
radioactive isotope power supply
radioactive isotopes source
radioactive label
radioactive level meter transmitters
radioactive life
radioactive marker
radioactive material
radioactive materials
radioactive measurement method
radioactive meterverification/calibration
radioactive mineral
radioactive mineral resource survey
radioactive nuclear beam
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