“underground economy”的概念、定义、翻译、参考文献-科学参考

单词	underground economy
释义	underground economy Encyclopedia 经济学地下经济释 underground economy地下经济逃避政府的管制、税收和监察，未向政府申报和纳税，其产值和收入未纳入国民生产总值的所有经济活动。涉及生产、流通、分配、消费等各个经济环节，可谓无所不在。是当前世界范围内的一种普遍现象，被国际社会公认为“经济黑洞”。
随便看	covariant covariant component covariant constant field covariant continuation covariant curvature tensor covariant density functional theory covariant derivative covariant derivative tensor covariant differential covariant differential operator covariant differentiation covariant divergence covariant exterior differential covariant field covariant formulation of Lorentz condition covariant formulation of Maxwell equations covariant formulation of Maxwell equations in media covariant formulation of the charge conservation covariant functor covariant index covariantly constant field covariantly constant spinors covariant mapping covariant morphism functor covariant of a group

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