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꼉(sh)W(xu)ƒԳ֪Rc(din)

rg2015-03-04 16:59:00   ԴonW(wng)     [wС ]
@ƪ꼉(sh)W(xu)ƒԳ֪Rc(din)©onW(wng)ص؞ҌW(xu)(x)
һؓ(f)(sh)

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

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

3ܽ(sh)SW(xu)^(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+̖Ҳʡȥ+̖+6.3xc(din)0Ȳ(sh)Ҳؓ(f)(sh)

516xʮz϶ʾ16;-16xؓ(f)ʮz϶ʾ16

62000ʾ2000Ԫô-500ʾ֧500Ԫ|3mӛ+34mӛ-4

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

A͈AF

1J(rn)RA͈AFĻJ(rn)RAĵ(c)͸J(rn)RAFĵ͸

2̽ՈAĂ(c)eeӋ㷽ԼAAFweӋ㹫ʽ\(yn)ùʽӋweQP(gun)ĺΌ(sh)H}

3ͨ^^O(sh)ӋAAFģ͵Ȼ˽ƽDcwD֮g“(lin)ϵl(f)չW(xu)Ŀg^

4AăɂA܇(c)ƽ(c)棬

5AĂ(c)ظչ_LLεLڈALLεČڈAĸ(dng)?sh)L͸ȕr(c)ظչ_һ

6Aıe=AĂ(c)e+e2S=S(c)+Sס22rh+2

7AĂ(c)e=L߼S(c)=Ch2r

8Awe=AĵeV=shr2

(M(jn)һ(sh)HУʹõIJ϶ҪӋĽY(ji)һЩˣҪ(sh)ĕrʡԵλϵ4߱4СҪǰһλM(jn)1@NȡֵķM(jn)һ)

9AFֻһ棬ǂAAFĂ(c)ǂ档

10ĈAFc(din)AĵľxLjAFĸߡAFֻһl(yAFĸߣȰшAFĵƽһKƽˮƽطڈAFc(din)Qֱƽ͵֮gľx)

11шAFĂ(c)չ_õһ

12AFwecȵ׵ȸߵĈAwe֮һVF=1/3Shr2h

13ҊĈAAFQ}١·C(j)^·e((c)e);·C(j)^·L(L);ˮͰFƤ((c)eһe);ܡNñ((c)eһe);ͨL(fng)((c)e)



1xͻ|(zh)

2ͷxҳгͳɷČ(sh)\(yn)ñ֪RQεČ(sh)H}

3J(rn)RP(gun)ϵĈDܸ(j)oP(gun)ϵĔ(sh)(j)(bio)ϵķϮD(j)һڈDҳӋһֵ

4˽ƽDıԼ(j)DϾx?q)Hx

5J(rn)RŴcsСF(xin)÷񼈵ʽһıΈDηŴsСwDε

6B͸(sh)˼ʹW(xu)ܵqCΨx^c(din)Ćɽ

7xʾɂȵʽӽ磺21=6

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

9|(zh)ڱɂ(xing)ķeڃɂɂ(ni)ķe@Ļ|(zh)磺32=64֪34=26;x15=y12֪xy=1.21.5

10(j)Ļ|(zh)֪еκ(xing)Ϳ@(sh)еһδ֪(xing)еδ֪(xing)

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

11ͷ

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

磺ٶһ·̺͕rg;?yn)飺·̡•rg=ٶ(һ)

ALֱ?yn)飺ALֱ=A(һ)

AeͰ돽ɱ?yn)飺Ae°돽=AʺͰ돽ķe(һ)

y=5xyx?yn)飺yx=5(һ)

ݡÿ쿴퓔(sh)һ퓔(sh)씵(sh)?yn)飺퓔?sh)씵(sh)=ÿ쿴퓔(sh)(һ)

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

磺·һٶȺ͕rgɷ?yn)飺ٶȡ(x)rg=·(һ)

rһ΃r͔(sh)ɷ?yn)飺΃r(sh)=r(һ)

ۡLeһL͌ɷ?yn)飺L=Lεe(һ)

40x=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±;

磺֪DϾx2cmͱt(sh)Hx飺21/200000=400000cm=4km

14DϾx=(sh)Hx;

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

ġ(sh)W(xu)V

1(jng)vԭ̽^̣˽⡰ԭáԭQεČ(sh)H}

2ͨ^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)֪Rܱ^쾚M(jn)(sh)С(sh)?jn)?sh)Ąt\(yn)M(jn)(sh)С(sh)ӡpˡĹʹÌW(xu)^ĺ㷨`M(jn)Ӌ;W(xu)^ķ;B(yng)əz(yn)(x)T

2얹̳ӋλıW(xu)λgM(jn)ʣ܉M(jn)кεĸČ

3W(xu)׺w;܉^쾚ӋһЩ׺wLeweܑ(yng);얹W(xu)ĺεĮDyȼ;얹SQDεJ(rn)RһDεČQS얹̈DεƽD(zhun)J(rn)R;Ô(sh)(j);x_wλãP(gun)ߵ֪Rܑ(yng)

4W(xu)Ľy(tng)Ӌ֪R܉򿴺LƺεĽy(tng)ӋD܉(j)(sh)(j)εДcA(y)yһЩ¼Ŀ܉QһЩӋƽ(sh)Č(sh)H}

5M(jn)һܔ(sh)W(xu)֪Rg໥“(lin)ϵw(sh)W(xu);W(xu)ijҊ(sh)P(gun)ϵͽQ}˼܉^`\(yn)W(xu)֪RQһЩεČ(sh)H}

y(tng)Ӌ

1Cϑ(yng)ÌW(xu)^Ľy(tng)Ӌ֪R܏Ľy(tng)ӋDМ(zhn)_ȡy(tng)ӋϢ܉_ጽy(tng)ӋY(ji)

2ܸ(j)y(tng)ӋDṩϢ_Д򺆆A(y)y