Degh德格degabbr.程度(=degree)degrading hydrocarbons退化碳氢化合物degenerative neuralgia变性性神经痛Degelatinated Deerhorn鹿角霜degenerative character退化性状degeneracy of the code编码简并Degeneration of retina视网膜变性degradable geotextiles可降解编织物Degenerative gradation退化草地degeneration condition简并条件degeneration of macula黄斑变性