GB/T 17634-1998 Geotextiles and geotextile-related products-determination of the characteristic opening size-wet sieving method[S].Beijing:China Planning Press,1998.是什么意思_GB/T 17634-1998 Geotextiles and geotextile-related products-determination of the characteristic opening size-wet sieving method[S].Beijing:China Planning Press,1998.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句