⇣ bifang ⇣bif100ang00006bif500ang00031bif1000ang00063bif2000ang00126bif5000ang00314bif10000ang00628⇣ bifang ⇣bif1,00000ang06283bif5,00000ang314bif10,00000ang628bif25,00000ang1571bif50,00000ang3141bif100,00000ang6283