Time lapse time difference is an important parameter in the determination of distribution for underground oil and water, because it includes the variation information of reservoir velocity.

而时移时差在确定地下油水分布时是一个很重要的参数，因为时移时差包含了储层速度的变化信息。

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The design of concrete face rockfill dam's toe slab is a process of iteration and optimization, the final determination of design parameter has finished in the construction process at last.

混凝土面板堆石坝趾板的设计过程是一个迭代与优化的过程，趾板设计参数的最终确定是在施工过程中完成的。

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The determination of clutch half joint and its control parameter selection are the keys to improve the starting quality of auto-shift vehicles in the clutch engagement process.

离合器接合过程半接合点的确定和控制参数的选取是提高自动变速车辆起步品质的关键。

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