direction filtering 方向滤波
spatial direction filtering 空间方向滤波
Direction Median Filtering 方向中值滤波
Direction matching filtering 方向匹配滤波
Experiments showed decreased porosity of the filter bed along the filtering direction.
试验发现，短纤维束滤料滤层的孔隙率沿过滤方向由大到小，为变孔隙滤层。
This is, admittedly, a very crude filtering mechanism, and any real scene engine would likely have a range of variables that would affect the direction of a person through the scenario.
坦率地说，这是一种非常粗糙的过滤机制，真实的场景引擎可能会使用多个变量，这些变量会影响用户在场景中的走向。
Beam pattern null in the direction of jamming is formed by space filtering and assisted receive channels to suppress the jamming.
它采用空间滤波技术，通过辅助接收通道在干扰方向形成波束图的零点，实现对干扰信号的抑制。
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