A filter media for an active field polarized media air cleaner comprises two layers of dielectric material, and a high-impedance permeable net is sandwiched in the low-impedance dielectric layer.
A polarization filter was placed in front of the sensor of ASD field spectrometer to obtain the polarized characteristics of water surface spectrum in various conditions.
的偏振过滤器被放置在前面的ASD场光谱仪的传感器，在各种条件下，得到的偏振特性的水面谱。
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Conclusions the filter with PVP-free polycarbonate membrane may be used to set up the model of RPE cells with polarized growth of monolayer and investigate the barrier function of RPE cells.