The design specification of antialiasing filter is presented by proof and the design and calculation of Chebyshev antialiasing filter is performed.
经论证提出了抗混滤波器的设计指标，进行了切比雪夫抗混滤波器的设计计算。
By adopting the utility model, the end of the filter tip is put downward when the cigarettes are boxed and packed, and the end with fungi-proof cover is put upward.
采用本实用新型，香烟装盒包装时，将香烟体的过滤嘴一端向下放置，香烟体的防菌套一端向上放置。
The light panel structure, the high quality PET synthetic fiber filter material is with features of low initial pressure, good fire-proof function.
轻便的板式结构，优质的聚酯合成纤维过滤材料，初阻力低，防火性好。
Cordage Fabric, Canvas, Automobile Tarpaulin, Air Inflating Mavelock, Water-proof Cloth, Construction Fabric, Filter Fabric, Bag Material, Lawn Establishment.
涂层织物、帆布、汽车帐篷、冲气材料、遮阳布、防水布、灯箱广告布、海滩伞、建筑织物、过滤织物、制袋材料、草坪设施。
Cordage Fabric, Canvas, Automobile Tarpaulin, Air Inflating Mavelock, Water-proof Cloth, Construction Fabric, Filter Fabric, Bag Material, Lawn Establishment.
涂层织物、帆布、汽车帐篷、冲气材料、遮阳布、防水布、灯箱广告布、海滩伞、建筑织物、过滤织物、制袋材料、草坪设施。
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