单词	字段选择
释义	字段选择field selection
随便看	degradable plastic degradable polymer degradable protein degradand degradation degradation analysis degradation behavior degradation ceremony degradation curve degradation --deterioration degradation factor degradation failure degradation interval degradation--interval degradation mechanism degradation mechanisms degradation model degradation modes degradation of contrast degradation of energy degradation of environment degradation of performance degradation of plastics degradation of semiconductor degradation of wetland ecosystem