The governing equations are discretized on uniform grids using the FiniteDifference method, and a double grid method is used for the mesh slice to save the time.

采用基于均匀网格的有限差分离散控制方程，为了节省时间，在网格剖分时还采用了双重网格法。

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The model tests show that this double grid cross-hole seismic tomography strategy is necessary and efficient, and the image results demonstrate that the method is superior to the conventional ones.

分析了采用这种双重网格地震层析成像技术的必要性，模型实验证实了此技术实用性和有效性。

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By the working principle of Double Grid Air Counter (DGAC) employed in detecting exoelectron emission, we put forward the design specifications of the power supply.

基于双栅极空气计数管的工作原理，提出了多路输出电源的设计指标。

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Strickland says it will have the capacity to double the initial once the nation's power grid is improved.

VOA: standard.2009.09.13

Tom Leighton insists the Akamai grid can continue to double capacity, annually and easily--at the least.

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IPhoto will find look-alike photos when you double tap on an image in the thumbnail grid view.

WSJ: The Digital Solution: Letting Your Fingers Do the Photo Editing

Put in a smart grid while you are doing these upgrades, and the savings double.

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