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gum rosin
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gum rosin
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农学
脂松香
释
gum rosin
脂松香
从松树活立木采集的松脂,经蒸馏加工除去松节油后得到的无定形透明玻璃状固体树脂。又称放松香、胶松香。
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resource utilization assessment
resource utilization curve
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resource utilization of blast furnace slag
resource utilization of bottom ash
Resource Utilization of Rodents
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