Dedon.德多DEDabbr.数据元素字典(=Data Element Dictionary)abbr.教育学博士(=Doctor of Education )dedekind domain绰金环dedifferentiatevi.[生]去分化；反分化dedetermination脱决定, 去决定, 逆决定Dedichen's testdedusting plant除尘装置ded electron gun屏蔽式电子枪dedusting system除尘系统dediploidization双核(菌丝或细胞)单元化dedifferentiated失分化deddendum circle[机] 齿根圆