液压流体动力。流体。HFC和HF d类防火流体的可过滤性测量。
Hydraulic fluid power. Fluids. Measurement of filtrability of HFC and HFD class fire resistant fluids.
要使滤布有很好的过滤性能，就必须具有良好的透通性，即透气性、透水性及渗透性。
To give better filtration properties to filtration fabric, a penetrating ability should be achieved included air permeability. Water permeability and penetrating property.
现在，我们有了大量的抗菌和免疫药物，使我们免受各种细菌和过滤性毒菌病原体的感染。
We now have a wide array of antibacterial medications and of immunizations against a variety of bacterial and viral pathogens.
现在，我们有了大量的抗菌和免疫药物，使我们免受各种细菌和过滤性毒菌病原体的感染。
We now have a wide array of antibacterial medications and of immunizations against a variety of bacterial and viral pathogens.
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