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。
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。
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。
Using a double-grid hydrogen thyratron, a fast pulse generator with four outputs, high-voltage, low jitter, was made to use at special occasion.
采用双栅极氢闸流管作为主开关，研制成功一种四路输出高压低晃动快脉冲源应用于某种特殊场合。
Using a double-grid hydrogen thyratron, a fast pulse generator with four outputs, high-voltage, low jitter, was made to use at special occasion.
采用双栅极氢闸流管作为主开关，研制成功一种四路输出高压低晃动快脉冲源应用于某种特殊场合。
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