(dng)ǰλã߿W(xu)W(wng) > B(yng)ϱU >
I(y)B(yng)ϽǸ(j)UMvUM(sh)ݕrȫʡڍƽY{(dio)ȫʡȫڏ(zhn)λ͘I(y)ˆTƽYݕrg͂~L~ӋÁôµĺݺB(yng)ϽӋأB(yng)ϽӋ㷽ʲôСP(gun)֪R
(һ)y(tng)IB(yng)ϽӋ㹫ʽ
y(tng)IB(yng)Ͻ=(ȫʡڍƽY+ָ(sh)ƽUMY)2(ҕͬUM+HUM)1%
ʽбָ(sh)ƽUMYӋ㹫ʽ飺
ָ(sh)ƽUMY=ȫʡڍƽYƽUMYָ(sh)
()~B(yng)ϽӋ㹫ʽ飺
~B(yng)Ͻ=~~±g(yng)Ӌl(f)(sh)
ʽСg(yng)Ӌl(f)(sh)飺
g Ӌl(f)(sh) g Ӌl(f)(sh) g Ӌl(f)(sh)
40 233 50 195 60 139
41 230 51 190 61 132
42 226 52 185 62 125
43 223 53 180 63 117
44 220 54 75 64 109
45 216 55 170 65 101
46 212 56 164 66 93
47 208 57 158 67 84
48 204 58 152 68 75
49 199 59 145 69 65
70 56
()^B(yng)ϽӋ㹫ʽ飺
^B(yng)Ͻ=ȫʡڍƽYƽUMYָ(sh)(ҕͬUM+~ǰHUM)1.4%
()y(tng)IB(yng)Ͻ^B(yng)ϽеıƽUMYָ(sh)酢˱˚vUMYָ(sh)ƽֵ˱ˮ(dng)UMYָ(sh)鱾ˮ(dng)UMY~һȫʡڍƽYҕͬUMąˆTҕͬUMÿָ(sh)ҕͬ1.0
ƽUMYָ(sh)Ӌ㹫ʽ飺
=(X1/C1+X2/C2+X3/C3++Xn/Cn)N
ʽШ鱾ƽUMYָ(sh);
X1X2X3Xn酢ǰ1ꡢ23ꡭnꮔ(dng)걾UMY~;
C1C2C3Cn酢ǰ123ꡭnȫʡڍƽY;
N酢ӋUM(ҕͬUM)ԡꡱλӋ㣬_С(sh)cλ;
ݮ(dng)겻Ӌָ(sh)UM(sh)ӋUM
ǰݲو(zh)ÿǰһpl(f)2%B(yng)ϽҎ(gu)
_(d)ݺB(yng)ϱU
rg2023-12-04 01:0:39VݺB(yng)ϱU
rg2023-12-04 01:0:11eݺB(yng)ϱU
rg2023-12-04 01:0:33ϳݺB(yng)ϱU
rg2023-12-04 01:0:42