fretty a.煩惱的；煩躁的fretting corrosion 摩擦磨蝕；接觸腐蝕fretting n.微振磨損adj.煩躁的；焦慮的fretted upland [地球科學]銳蝕高地fretted terrain fretted lead [土木建筑工程]窗嵌玻璃鉛條[機械工程]細鉛條fretted adj.焦躁的；腐蝕的；有格子裝飾的動詞fret的過去式和過去分詞形式.frettage n.摩擦腐蝕fretsaw frame 鋼絲鋸條fretsaw n.圓鋸；線鋸frets 基質(zhì)間片fretless (adj.) fretfulness n.焦躁；擔憂fretfully adv.焦躁地；焦急地fretful (adj.) fretful adj. 焦躁的；煩燥的；起波紋的fretboard （吉他等的）音品板。freta (單fretum)狹窄fret-work 回紋細工fret-saw 鋼絲鋸,嵌鋸,細工鋸