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卫生标准
以保障人群健康、预防疾病为直接目的,依照法定程序批准颁布,针对与人的生存、生活、劳动和学习有关的各种自然和人为环境因素所制定的一系列量值规定(包括最适范围和容许限量),以及为保证实现这些规定所必需的技术行为与要求。
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seed production
seed production area
seed production of rapeseed
seed production of rapeseed conventional cultivar
seed production stand
seed rearing
seed rearing of Black grunt ,seed rearing of Hapalogenys nitens
seed rearing of Boleophthalmus pectinirostris
seed rearing of Chanos chanos
seed rearing of Chelon haematocheilus
seed rearing of Chromileptes altivelis
seed rearing of Crassostrea gigas
seed rearing of Crassostrea gigas angulata
seed rearing of Cyclina sinensis
seed rearing of echinodermata
seed rearing of Epinephe lusfuscoguttatus
seed rearing of Epinephelus lanceolatus
seed rearing of Haliotis discus hannai
seed rearing of Haliotis diversicolor
seed rearing of Large yellow croaker,seed rearing of Larimichthys crocea
seed rearing of Lateolabrax maculatus
seed rearing of Lutjanus erythopterus
seed rearing of marine fish
seed rearing of Meretrix meretrix
seed rearing of mollusc
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