A finite automaton (FA) was used to build up the shallow water ray tracing model, and the model state, transition, event and action were analyzed.

用有穷状态自动机对浅海的声线追踪建模，给出了浅海声线追踪内在的状态及状态转移分析。

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Iridium can also be found in crystals in computer memory devices, deep-water pipes, X-ray telescopes and the equipment that makes rayon fibers.

在电脑内存设备护面，深水导管，X射线望远镜和制造粘胶纤维的设备中，也都能找到铱的身影。

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Franklin's achievement was to discover that previous X-ray photos of DNA were hard to interpret because DNA crystallizes in two forms, known as a and b, depending on their water content.

富兰克林的造诣就是发现之前的DNA的X光照片很难解读，因为DNA有两种结晶体——A型和B型——取决于含水量。

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"I wouldn't be surprised as we move uphill that we find a section of the rock, in fact, that was modified in a shallow open-water environment, " said Ray Arvidson, rover deputy principal investigator and a geologist at Washington University in St.

CNN: Mars rovers working overtime