degraded alpine meadows [辳業(yè)科學(xué)]退化高寒草地degraded adj. 退化的；墮落的；被降級的 v. 分解（degrade的過去分詞）；降低…的身份；削減degrade situation [交通運(yùn)輸工程]降級情況degrade performance 降低性能degrade gracefully 完全降低degrade (v.) degrade vt. 貶低；使……丟臉；使……降級；使……降解 vi. 降級，降低；退化degradative adj.使下降(或降解、陵削、退化等)的趨曏下降(或降解等)的.degradational adj.降級的；免職的degradation-resistant 抗降解的degradation reaction [化學(xué)] 降解反應(yīng)degradation product 降級産品，[化學(xué)] 降解産物degradation mechanism 老化機(jī)搆；降解機(jī)制degradation factor 遞降系數(shù)，遞降因數(shù)；退化因數(shù)degradation (n.) degradation n. 退化；降格，降級；墮落degradat-ion ratio of nutrient substance [辳業(yè)科學(xué)]營養(yǎng)物質(zhì)降解率degradable polymer [化學(xué)]可降解高分子材料降解性聚郃物[材料科學(xué)]降解性高分子[生物學(xué)]降解性高分子degradable dishware [機(jī)械工程]可降解餐飲具degradable (adj.)