duopolies

英

美 [ˈduoʊˌpɑliz]

n. (商品或服务的)两强垄断; 两强垄断集团
duopoly的复数

N-VAR (行业的)两强垄断
If two companies or people have a duopoly on something such as an industry, they share complete control over it and it is impossible for others to become involved in it.
1. They are no longer part of a duopoly on overseas routes.
  他们不再是垄断海外航线的两强之一。
N-COUNT (行业的)两强垄断集团
A duopoly is a group of two companies which are the only ones which provide a particular product or service, and which therefore have complete control over an industry.
1. Their smaller rival is battling to end their duopoly.
  规模更小的竞争对手正为结束他们的两强垄断局面而抗争着。

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Yet each big man works a particular turf: in Hong Kong licenced oligopolies and duopolies have produced a handful of giants; elsewhere business leaders blatantly subvert governments.
然而，每位大人物都有自己独特的地盘：在香港，获得政府特许的寡头垄断和双寡头垄断造就了少数巨人；在其它地区，企业领袖则会大张旗鼓的推翻政府。
A Class of Cournot Duopolies under the Asymmetric Competition
一类不对称竞争下双寡头模型的分析
And if the utility expectation distribution is too discrete, the duopolies need to perform market segmentation and users poisoning to meets the needs of different segment users with quality differentiation.
如果效用预期分布过于离散，则需要进行市场细分、定位目标用户群，并通过质量差异化策略满足不同区段的用户需求。
Consistent with the results of related studies, the users 'utility expectation may cause the reduction of the duopolies' profits. Because there will always be some users to become more censorious and leave from the whole market, and that discerning users always consume randomly.
与相关文献的研究结果一致，用户效用预期会造成现阶段市场利润的降低，因为总是会有某些用户因为变得更加挑剔而从整个市场流失掉，而太不挑剔的用户又总是随机选择。