bacterial proof filter 防细菌滤器
leukocyte proof filter 白细胞滤器
bacterial l proof filter 防细菌滤器
mold proof air filter 防霉型空气过滤网
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。
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