ͨh(hun)Ƽ˾һҼаl(f)
XĥCÓģ
XNһwнa̡˾Ԅ(chung)kԁԪصĽIԻĹģʽaƷĶӻŬ“\”I(y)ʹI(y)ͬИI(y)һ֦ ˾LڹXÿ¹_500XԭϸɃos|X½ԭϾXSXX½ĥ
ӚX75ǧͶ6СrҾͿ. ˾ԭȫЇXI(y)˾XQһЩСSõsXXˮ|ˮ܄ĥƼӹɵyɫ[ƬĩXʹˮɢԺl(f)ٶȾcڼӚעaǹ}Ʒ
ӄl(f)℩ָ˾χJC/T407-2008˜ʣw≥65%X≥85%0.075mmY≤3%l(f)ʣ440-60%16≥90%30≥99% Sλںʡݸ¼g_l(f)^(q)١BپгBcVF·ooȫͨļɢͨʮֱ@ą^(q)λ(yu)γͨ_ĮaƷ;WjS^(q)ռe4000ƽe1200ƽF45й̶Ya250fԪgۺzORȫҪO gӭQ̼Ñӆ؛ҏSԱ|ĮaƷȫи(yu)ݵărc