Although the bamboo is the fastest-growing plant on Earth, it looks lazy at first because there is no branching... just growing lots of deep and wide roots.

虽然竹子是地球上生长最快的植物，但它最开始时看起来懒懒的，因为它并没有发枝长芽…只是不停地往下长出又深又广的根。

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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.

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。

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