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虫胶
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虫胶
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虫胶
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lac
虫胶
紫胶虫分泌的一种天然琥珀色树脂物质。以紫胶树脂为主要成分,混合着紫胶色素、紫胶蜡、糖类、蛋白质、盐类(或其他掺杂物)等物质。原名紫胶。
Physics
shellac
虫胶
Biology
lac
虫胶
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coefficient comparison
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coefficient of apparent expansion
coefficient of association
coefficient of autocorrelation
coefficient of bulk expansion
coefficient of bulk viscosity
coefficient of closure in bioregenerative life support system
coefficient of competition
coefficient of complexation effect
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