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初级辐射
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初级辐射
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primary radiation
初级辐射
由辐射源直接发出尚未与物质发生相互作用的电离辐射和非电离辐射。
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primary radiation
初级辐射
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marker-assisted gene polymerization
marker-assisted selection
marker-free transgenic technology
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marker gene deletion technique
marker horizon
marker residue
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marketable pollution permits
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market access in GATS
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