恢復(fù)原狀 old pattern of interests: 原有的利益結(jié)構(gòu)old-fashioned pattern: 裝飾式樣close pattern return bend: 閉合回轉(zhuǎn)彎頭; 閉合式180彎頭pulse return pattern: 脈沖回波方式wide pattern return bend: 寬徑不閉合式180度彎頭; 寬徑不閉合式180度振蕩器彎頭下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯