求翻译：09年的筛子孔径最大，12年的筛子孔径比09年的要小，10年进的孔径最小，因10年和12年的筛子均为新筛子，不存在筛网的磨损情况，所以我认为这就是制做筛子时本身的问题，并且09年的筛子也应该是筛子本来孔径就比较大，因为这套筛子的60目都没有因筛网磨损对80目造成影响，而40目筛子的丝径要比60目粗，所以40目不会比60目磨损大。是什么意思？

2009 maximum sieve aperture 12 years of sieve aperture 2009 is smaller aperture minimum of 10 years into the new sieve, are due to the sieve for 10 years and 12 years, there is no wear and tear of the screen, so I think This is the system doing sieve own problems, and 2009 sieve is a sieve would hav

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09 year screen apertures are biggest, 12 year screen aperture ratio 09 years must be small, 10 years enter the aperture is smallest, because 10 years and 12 year screens are the new screens, does not have the strainer the attrition situation, therefore I thought this is makes when the screen itself

09 of sieve aperture maximum, 12 of sieve aperture than 09 of to small, 10 into of Aperture minimum, due to 10 and 12 of sieve are for new sieve, does not exists screen network of wear situation, so I think this is system do sieve Shi itself of problem, and 09 years of sieve also should is sieve was