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松香色级
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松香色级
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松香色级
释
color grade of rosin
松香色级
由松香的光谱特性确定的颜色等级。是松香的重要质量指标和松香产品定级的重要依据。
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Agricultural Genomics Institute at Shen Zhen, Chinese Academy of Agricultural Sciences
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agricultural greenhouse gas monitoring
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agricultural hydrological characteristics of soil
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agricultural information institute of CAAS
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