Strong two dimensional effect on the field penetrating speed should be included in the fluid analysis for a plasma space distribution with high density gradient.
对于等离子体空间分布存在较大的密度梯度的物理问题，必须考虑二维空间特性对磁场渗透速度的影响。
Seven subwoofers four tweeters and two centrally located woofers produce a three-dimensional and highly discriminating acoustic sound effect to thrill the driver and passengers alike.
七个亚低音扬声器、四个高频扬声器和两个位于中间的低音扬声器共同创造出高分辨率的三维音响效果，让驾乘者都能够充分享受到音乐和声音所带来的震撼。
A two-dimensional axisymmetric hybrid particle-in-cell and Monte Carlo Collision model is developed to study the Hall effect thruster plume.
采用粒子网格单元与蒙特卡洛碰撞相结合的方法，建立霍尔效应推力器羽流的二维轴对称模型。
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