The result shows: the dimension disposal of the triangular groove used in inlet and outlet way should be unsymmetrical, and plate noises can be controlled well after using triangular groove.
结果表明：对吸、排油采用的三角槽结构尺寸布置应该是非对称形式的，并且采用了此三角槽结构后，配流噪声可以得到较好的控制。
For one step direct method, it is essential to have a two dimension pattern plate with high resolution, high contrast and low noise.
一步直接法，必须要有高分辨率，高对比度和低噪声的二维模板，否则必然导致失败。
The velocity at the free face of a thick steel plate impacted by an explosive plate is calculated by means of the two-dimension dynamic finite element analytical method.
在炸药爆炸驱动飞板碰撞厚钢板后，利用二维动态有限元数值分析方法对厚钢板自由面的速度进行了数值计算。
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