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生态退化
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生态退化
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生态退化
释
ecological degradation
生态退化
在一定的时空背景下,在自然因素、人为因素或二者共同作用下,导致生态要素和生态系统发生的不利于人类和生物生存的量变和质变的过程或结果。
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Maroni River
Maronites
Maroon War
Maroua
Maroun an-Naqqash
Marprelate Controversy
Marquardt
marquenching
Marquesas Islands
Marquess of Robert Arthur Talbot Gascoyne-Cecil Salisbury
Marquis Chao's Son Stele Remnant
Marquis de Condorcet
Marquis test
Marquis' Tomb of Western Han Dynasty
Marrakech
Marrakech Museum
Marranos
marresistance
marriage
marriage between people bearing the same surname is forbidden
marriage by exchange
marriage by service
marriage certificate issued by Taiping Heavenly Kingdom
Marriage for Peace
marriage gradient
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