英語翻譯The beta ratio is normally used to characterize filter m

題目：

英語翻譯
The beta ratio is normally used to characterize filter media because it is more sensitive to small changes in the higher efficiency range than is the efficiency.The beta ratio and efficiency often used to define the nominal rating for a depth filter medium.Manufacturers may define the nominal rating for a depth filter medium.Manufacturers may define the nominal size of their media as the size spherical particle for which the medium captures 98%.Hence if a filter captures 98% of 2-m spherical particles,then the filter may be given a nominal rating of 2 m.Different filter media suppliers may use different percentages other than 98% to characterize their media.The beta ratio and efficiency only considers the capture of particles.The quality factor considers the capture of particles as well as pressure drop.Ideally,the pressure drop through a depth filter is proportional to the thickness of the filter.Conversely,the log of the particle penetration(ration of the number of particles passing through the filter to the number challenging the filter)is proportional to the thickness of the filter.Hence,the quality factor

解答：

eta版的比例通常是用來描述過濾介質,因爲它是敏感的小變化範圍要比效率更高的效率.測試版比和效率通常用於定義名義等級來深度過濾介質.製造商可能定義名義等級來深度過濾介質.製造商可能定義標準尺寸的大小媒體的球形粒子的捕獲98%的媒介.因此,如果一個過濾器捕獲98%的全身的球形顆粒,然後過濾器可以給出的評級m.Different名義2過濾介質的供應商可能使用不同的百分比除了98%來表現其媒體.測試版比和效率僅考慮捕獲的粒子.質量因素考慮的捕獲粒子以及壓降.理想情況下,壓降通過深度過濾是成正比的厚度的過濾器.相反,日誌的粒子滲透(配給的數量的粒子通過過濾器,以數字挑戰過濾器)是成正比的厚度的過濾器.因此,質量的因素