“urban ecological crisis”的概念、定义、翻译、参考文献-科学参考

单词	urban ecological crisis
释义	urban ecological crisis Encyclopedia 理学城市生态危机释 urban ecological crisis城市生态危机发生在城市生态系统中的生态环境被严重破坏、城市居民的生存与发展受到威胁的现象。
随便看	contragradient isomorphism contragradient linear transformation contragradient mapping contragradient matrix contragradient module contragradient representation contragradient set contragradient transformation contragredient contragredient automorphism contraharmonic mean contraindicated during pregnancy contraindicated in diet contraindication of Chinese medicinal use contraindication of pattern contralto contranatant contraorbital contraorbitally contra-parallelogram contrapedal curve contrapolarization contraposition contrapositive contrapositive of the implication

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