管理学中,一般外部环境是位于外层,对于所有组织的影响都是间接的,也是均等的.一般包括政治因素，经济因素，科技因素，社会因素等。
情境模型统一对企业的内部资源约束和外部环境限制建模，扩展了一般企业模型的资源子模型。
Context model has uniformed the internal resources restraint and the external environment restraint of an enterprise, thus the common enterprise resources model is enriched.
民航交通灾害的发生一般由民航运输过程中外部环境突变、人为失误与飞机失控等因素相互作用所造成。
Civil aviation traffic caused by the transport environmental sudden change, fault caused by people and factor interaction out of control of plane generally.
传统的国民经济评价方法一般是根据净现值的大小一次做出决策，不考虑项目的内外部环境的变化对项目的影响。
Traditional evaluation method of national economy is to make a decision at one time by the net present value, without considering the influence induced by the change of project environments.
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