used a.使用过的,二手的,习惯的相...A is used as B 甲被用作乙...used to 过去经常(做)...,过去有规...catch of used oil 废油收集器...least-recently-used 最近最少使用的...used area 占用区...where-used tree 适用树...frequently-used 常用的...bytes used 已使用字节...chemicals used in pulping digestion 制浆蒸煮剂;造纸制浆蒸煮剂...used oil reclaimer 废油再生器...used heat 余热...used oil regenerator 废油再生器...building used in operation 营业用建筑物(房屋)...journals used in fiduciary accounting 信托会计中用的分录簿(日记帐)...used-to-be n.过时的人,从前出过风头的人...it used to be said that... 过去常说......ratio to material used 材料利用率...furnitures and fixtures used in operation 营业设备与装置...frequently-used data 常用数据...used oil 废油...
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