correcting filter meaning in English

校正滤波器
校正滤光片

For each document , sql server chooses the correct filter based on the file extension
对于每个文档， sql server根据文件扩展名来选择正确的筛选器。
Geometrical product specifications - surface texture : profile method - metrological characteristics of phase correct filters iso 11562 : 1996 ; german version en iso 11562 : 1997
产品几何量规范.表面结构:轮廓法.相位校正滤波器的计