The physicochemical properties of sorbic acid are described, several methods of making it are introduced, and its practical use reviewed.

介绍了山梨酸的理化性能，对生产它的几种方法进行了论述，并阐述了其实际应用。

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There, however, are still some problems to be tackled to improve its hydrodynamic performances and promote its practical use, such as the relation between the configuration and its resistance.

然而，为改进其水动力学性能和促进其实用化，尚有一些问题需要解决，例如有关三体船构型与阻力性能的关系。

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So it has an important practical significance to change the old audit mode, use the computer technology to improve the audit efficiency and decrease its risk and guarantee its quality.

改变旧的审计模式，开展计算机审计，提高审计效率，降低审计风险，保证审计质量，有着十分重要的现实意义。

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Its technology will now be put to a more practical use helping students to consider challenging cases and offering potential diagnoses.

BBC: IBM's Watson supercomputer goes to medical school