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en·gi·neer·ing AHD[ĕn'jə-nîrʹĭng] D.J.[ˌendʒəˈnɪərɪŋ]K.K.[ˌɛndʒəˈnɪrɪŋ]n.（名词）abbr. e., E., eng.【缩写】- The application of scientific and mathematical principles to practical ends such as the design, manufacture, and operation of efficient and economical structures, machines, processes, and systems.工程学：将科学及数学原理运用于实际用途的应用手段，如设计、制造及对高效经济构造、机器、进程及系统进行操纵管理
- The profession of or the work performed by an engineer.工程师职业：工程师所做的活动或业务
- Skillful maneuvering or direction:熟练的操作或指导：geopolitical engineering; social engineering.地理政治操作法；社会运作法
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