周知，卷积等价族在风险理论，排队系统，分支过程，无穷可分分布等领域有重要的应用，因而受到广泛的重视。
It is well known that the convolution equivalent distributions have wide and important applications in risk theory, queueing system, branching process and infinite devisibility and so on.
视听传播是教育理论与实践的一个分支，它主要研究对控制学习过程的信息进行设计和使用。
Audiovisual communications is that branch of educational theory and practice concerned with the design and use of message which control the learning process.
自从上世纪60年代以来，重尾分布已经在分支过程，排队论，风险理论包括金融保险等领域中有了广泛的应用。
Since the 1960s, heavy-tailed distributions have been widely used in branching processes, queueing theory, risk theory including insurance and finance and other fields.
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