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通过对三类七种柴油机微粒滤芯进行试验研究和评价，证实适当的滤芯结构参数可以使高过滤效率与低排气背压相统一，为过滤器的实用化提供了可靠的依据。
Through the experimental study and evaluation on three types of seven kinds of diesel particulate filter, it is proved that the appropriate filter structure parameters can make the high filtration efficiency and low exhaust back pressure unified, which provides a reliable basis for the practical application of the filter.