JSR 170 treats transactional support as an optional feature and does not impose a standard way of exposing the transactional hooks so each implementation can chose a different method.

JSR 170将事务支持视为可选特性，并没有强制一个标准的方式来暴露事务钩子，因此每个实现可以选择不同的方法。

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Using standard X -11 method, we analyze seasonal fluctuation of international oil price and discuss its movement discipline, in order to provide information support for importing oil of our country.

利用标准x - 11方法分析国际油价季节性波动，探讨油价运动规律，为我国进口石油提供信息支持。

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Objective: to establish a TLC identification method of Qingre Huadu Pill, and support to set up quality control standard for the product.

前言：目的：建立清热化毒丸的薄层色谱鉴别方法，为制定其质量控制标准提供试验依据。

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