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꼉(j)(sh)W(xu)ƒ(c)֪R(sh)c(din)

r(sh)g2015-03-04 16:59:00   (li)Դo(w)nW(wng)     [wС ]
@ƪ꼉(j)(sh)W(xu)ƒ(c)֪R(sh)c(din)©o(w)nW(wng)ص؞ҌW(xu)(x)
һؓ(f)(sh)

1Ϥ龳гJ(rn)R(sh)ؓ(f)(sh)_x(sh)ؓ(f)(sh)֪0Ȳ(sh)Ҳؓ(f)(sh)

2W(xu)(hu)ؓ(f)(sh)ʾһЩճеČ(sh)H}w(yn)(sh)W(xu)c“(lin)ϵ

3ܽ(sh)SW(xu)(hu)^(sh)0ؓ(f)(sh)֮gĴС

4-16-500-3/8-0.4@ӵĔ(sh)ؓ(f)(sh)-3/8xؓ(f)˷֮162003/86.3@ӵĔ(sh)(sh)(sh)ǰԼӡ+̖(ho)Ҳʡȥ+̖(ho)+6.3xc(din)0Ȳ(sh)Ҳؓ(f)(sh)

516xʮz϶ʾ16;-16xؓ(f)ʮz϶ʾ16

62000ʾ2000Ԫô-500ʾ֧500Ԫ|3mӛ+34mӛ-4

7ڔ(sh)Sҵǔ(sh)С0(sh)ؓ(f)(sh)ķֽc(din)еؓ(f)(sh)0߅Ҳؓ(f)(sh)0С(sh)0ؓ(f)(sh)(sh)Сؓ(f)̖(ho)Ĕ(sh)Խ@(g)(sh)ԽС磺-8<-6

A͈AF

1J(rn)R(sh)A͈AFĻJ(rn)R(sh)Aĵ(c)͸J(rn)R(sh)AFĵ͸

2̽?qng)AĂ(c)eeӋ(j)㷽ԼAAFweӋ(j)㹫ʽ(hu)\(yn)ùʽӋ(j)weQP(gun)ĺ(jin)Ό(sh)H}

3ͨ^(gu)^O(sh)Ӌ(j)AAFģ͵Ȼ(dng)˽ƽDcwD֮g“(lin)ϵl(f)չW(xu)Ŀg^

4Aăɂ(g)A܇(c)ƽ棬(c)

5AĂ(c)ظչ_L(zhng)L(zhng)εL(zhng)ڈAL(zhng)L(zhng)εČڈAĸ(dng)?sh)L(zhng)͸ȕr(sh)(c)ظչ_һ(g)

6Aıe=AĂ(c)e+e2S=S(c)+Sס22rh+2

7AĂ(c)e=L(zhng)߼S(c)=Ch2r

8Awe=AĵeߣV=shr2

(M(jn)һ(sh)HʹõIJ϶ҪӋ(j)ĽY(ji)һЩҪ(sh)ĕr(sh)ʡԵλϵ4߱4СҪǰһλM(jn)1@NȡֵķM(jn)һ)

9AFֻһ(g)ǂ(g)AAFĂ(c)ǂ(g)

10ĈAFc(din)AĵľxLjAFĸAFֻһl(y(c)AFĸߣȰшAFĵƽһKƽˮƽطڈAFc(din)Qֱƽ͵֮gľx)

11шAFĂ(c)չ_õһ(g)

12AFwecȵ׵ȸߵĈAwe֮һVF=1/3Shr2h

13ҊĈAAFQ}·C(j)^(gu)·e((c)e);ڡ·C(j)^(gu)·L(zhng)(L(zhng));ˮͰFƤ((c)eһ(g)e);ܡNñ((c)eһ(g)e);ͨL(fng)((c)e)



1xͻ|(zh)(hu)

2ͷxҳгͳɷČ(sh)\(yn)ñ֪R(sh)Q(jin)εČ(sh)H}

3J(rn)R(sh)P(gun)ϵĈDܸ(j)oP(gun)ϵĔ(sh)(j)(bio)ϵķϮD(hu)(j)һ(g)ڈDҳӋ(j)һ(g)ֵ

4˽ߣ(hu)ƽDıԼ(j)DϾx?q)Hx

5J(rn)R(sh)ŴcsСF(xin)÷񼈵ʽһı(jin)ΈDηŴsСw(hu)Dε

6B͸(sh)˼ʹW(xu)ܵqCΨx^c(din)Ćɽ

7xʾɂ(g)ȵʽӽ磺21=6

8MɱĂ(g)(sh)(xing)ɶ˵ă(xing)(xing)gă(xing)(ni)(xing)

9|(zh)ڱɂ(g)(xing)ķeڃɂ(g)ɂ(g)(ni)ķe@Ļ|(zh)磺32=64֪34=26;x15=y12֪xy=1.21.5

10(j)Ļ|(zh)֪еκ(xing)Ϳ@(g)(sh)еһ(g)δ֪(xing)еδ֪(xing)

磺3x=48(ni)(xing)˃(ni)(xing)(xing)(xing)t4x=38x=6

11ͷ

(1)ɷNP(gun)“(lin)һN׃һNҲS׃@ɷN(du)(yng)ăɂ(g)(sh)ıֵ(Ҳ)һ@ɷNͽP(gun)ϵP(gun)ϵĸʾy/x=k(һ)

磺ٶһ·̺͕r(sh)g;?yn)飺·̡•r(sh)g=ٶ(һ)

ڡAL(zhng)ֱ?yn)飺AL(zhng)ֱ=A(һ)

ۡAeͰ돽ɱ?yn)飺Ae°돽=AʺͰ돽ķe(һ)

y=5xyx?yn)飺yx=5(һ)

ÿ쿴(y)(sh)һ(y)(sh)씵(sh)?yn)飺?y)(sh)씵(sh)=ÿ쿴(y)(sh)(һ)

(2)ɷɷNP(gun)“(lin)һN׃һNҲS׃@ɷN(du)(yng)ăɂ(g)(sh)ķeһ@ɷNͽɷP(gun)ϵP(gun)ϵĸʾxy=k(һ

磺·һٶȺ͕r(sh)gɷ?yn)飺ٶȡ(x)rg=·(һ)

ڡr(ji)һ΃r(ji)͔(sh)ɷ?yn)飺(jin)΃r(ji)(sh)=r(ji)(һ)

L(zhng)eһL(zhng)͌ɷ?yn)飺L(zhng)=L(zhng)εe(һ)

ܡ40x=yxyɷ?yn)飺xy=40(һ)

úĿһÿğú͟씵(sh)ɷ?yn)飺ÿú?sh)=úĿ(һ)

12DϾx(sh)Hx=;

磺DϾx2cm(sh)Hx4kmtߞ2cm4kmñ1200000

13(sh)Hx=DϾx±;

磺֪DϾx2cmͱߣt(sh)Hx飺21/200000=400000cm=4km

14DϾx=(sh)Hx;

磺֪(sh)Hx4kmͱ1200000tDϾx飺4000001/200000=2(cm)

(sh)W(xu)V

1(jng)vԭ̽^(gu)̣˽⡰ԭ(hu)áԭQ(jin)εČ(sh)H}

2ͨ^(gu)ԭ`(yng)øܔ(sh)W(xu)

(f)(x)

1^ϵy(tng)P(gun)(sh)С(sh)?jn)?sh)Ͱٷ?jn)?sh)ؓ(f)(sh)Ⱥͱ̵ĻA(ch)֪R(sh)ܱ^쾚M(jn)(sh)С(sh)?jn)?sh)Ąt\(yn)㣬M(jn)(sh)С(sh)ӡpˡĹ(hu)ʹÌW(xu)^(gu)ĺ(jin)㷨`M(jn)Ӌ(j);(hu)W(xu)^(gu)ķ;B(yng)əz(yn)(x)T

2얹̳Ӌ(j)λıW(xu)λgM(jn)ʣ܉M(jn)к(jin)εĸČ

3W(xu)׺w;܉^쾚Ӌ(j)һЩ׺wL(zhng)eweܑ(yng);얹W(xu)ĺ(jin)εĮDy(c)ȼ;얹S(du)QDεJ(rn)R(sh)(hu)һ(g)DεČ(du)QS얹̈DεƽD(zhun)J(rn)R(sh);Ô(sh)(du)(j);x_wλP(gun)ߵ֪R(sh)ܑ(yng)

4W(xu)Ľy(tng)Ӌ(j)֪R(sh)܉򿴺Lƺ(jin)εĽy(tng)Ӌ(j)D܉(j)(sh)(j)(jin)εДcA(y)y(c)(hu)һЩ(jin)¼Ŀ܉QһЩӋ(j)ƽ(sh)Č(sh)H}

5M(jn)һܔ(sh)W(xu)֪R(sh)g໥“(lin)ϵw(hu)(sh)W(xu);W(xu)ijҊ(sh)P(gun)ϵͽQ}˼܉^`\(yn)W(xu)֪R(sh)QһЩ(jin)εČ(sh)H}

y(tng)Ӌ(j)

1(hu)Cϑ(yng)ÌW(xu)^(gu)Ľy(tng)Ӌ(j)֪R(sh)܏Ľy(tng)Ӌ(j)DМ(zhn)_ȡy(tng)Ӌ(j)Ϣ܉_ጽy(tng)Ӌ(j)Y(ji)

2ܸ(j)y(tng)Ӌ(j)DṩϢ_Д(jin)A(y)y(c)