詞態(tài)變化
復(fù)數(shù):?peens;第三人稱(chēng)單數(shù):?peens;過(guò)去式:?peened;過(guò)去分詞:?peened;現(xiàn)在分詞:?peening;
英文詞源
- peen (n.)
- 1680s, "sharp or thin end of a hammer head, opposite the face," probably from a Scandinavian source (compare Norwegian dialectal penn "peen," Old Swedish p?na "beat iron thin with a hammer"). Earlier as a verb, "to beat thin with a hammer" (1510s).
雙語(yǔ)例句
- 1. The new development of modem tool materials and prospect in the peen forecasted.
- 對(duì)現(xiàn)代刀具材料的新進(jìn)展及來(lái)來(lái)的狀況作了討論與預(yù)測(cè).
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- 2. To peen sandblasting, Shot Blast Cleaning, green dust three series over 100 varieties - oriented products.
- 以噴丸噴砂 、 拋丸清理 、 環(huán)保除塵三大系列100多個(gè)品種為主導(dǎo)產(chǎn)品.
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