extra n.额外的事物,另外的收费a....extra-special a.异常优秀的,特别优良的...ab extra 从外面...extra- pref.在...之外,超出,...extra-class licence 特级许可...take on extra work 雇用临时工...extra-long distance 超长距离...extra-stress 额外应力;附加应力...extra-uterine 子宫外的...extra-pale 超苍白(石油产品标准颜色的标志...res extra nostrum patrimonium 不可占有物...number of extra width 宽字长级别数...extra-erythrocytic 红细胞外的...packing extra 包装费用另计...extra-budgetary 预算外...extra-departmental organization 部外制的人事机构...extra order 外加指令...extra-costs 额外费用,附加费用...extra-marginal 超边际...extra-oral film 口外照片...extra-heavy pipe 特强管;厚壁管...
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