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һPI~RҪ
иԇĵһPIǣ~һҪ҂֪иĆ~^ȥи@ӵڅ^ȥиxֻ350ÿƪиӵ700ÿƪ~RĿȻ^~Rռıؑԓx}Ŀ1/4҂چ~@һPһܺõͻƵԒڿиǷdzЎģиx͘˜ҲҪ҂8ǧҵ~R@ӵ~RͬWxһĕrČWЎͬWһ²xϵϵK
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F(xin)҂ͬW ϵĵõ^ȥö࣬Wվ϶кܶ ϵd߀ȥһЩWľWվȥеѽƬvnƬȥ@҂ǷdzȻ҂ VOAȏV(ji)Ŀ
PIӛPӛиc
Ҳиɹ俼PI֮һǰ҂l(f)F(xin)и߀һЩ@Ҳ҂ڽ̌W^̮к҂ώڷeOиԇ^аl(f)F(xin)һҪ——и߀eؿһWӛPӛʲô@ôfأ һ һξ56^ȥ ^Л]}ĿF(xin)f@ԺŽo}ȥ} ^̮ҪӛPӛȻĹPӛȥش}Ԓش÷dzI(y)ZҲһӵZ俼ӛPӛZ3456}ҪӛPӛ3456}Ҫ҂C xăȥ^ش}x fCһoՓx߀ ϶Ҫ҂ӛPӛdzdzڌҲһӵֵľCόҪ҂xһƪ£ һƪȻٌˣPӛӛñ^õԒǺЎ҂l(f)F(xin)䌍иPI Ҫã~RҪپѸԼӛPӛ@Щиĸ߷䌍·Ɍ
҂һώǽ̿ZώؿRWI(y)xĕrһֳɺܶWСM4һСMһؓ؟ӛAڵĹPӛһؓ؟ӛڵĹPӛ@һӛ˾oӛĩԇ֮ǰһѹPӛһȻ@ЩPӛһݣһһ@Ӳܴ߷֣ٿԱC}Ǵ߷߀Ҫ~Ŭ
һPIc VS TPO