广告平台也是双向网络的例子——联结分离的在线用户与广告主。
An advertising platform is also a special case of a two-sided network connecting two disjoint markets of on-line users and advertisers.
它们分别经过语言调制和联结学习的方式进行转化，从而企业知识经历个体知识，团队知识到组织知识转化的双向过程。
They transform from either adjustment system of language or study system so that business enterprise knowledge changes from the individual knowledge, team knowledge and organization knowledge.
同心双向阀结构克服了传统的单向阀并联结构两阀间易连通的缺点。
The construction of concentric bi-directional valve overcomes the disadvantage of easy to connect between two parallel check valves.
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