(bio)}2019꺣ڌW(xu)һ(j)쎟ļҺ
һ(j)쎟Ϣ һ(j)쎟Ǻһ(j)쎟Ӗ(xn)W(xu)Уc(din)I(y)֪һ(j)쎟Ӗ(xn)C(j)(gu)Ӗ(xn)֪Ʒһ(j)쎟Ӗ(xn)W(xu)У˾F(xin)5000Tн1000I(y)vȫ(gu)30(g)ʡ΅^(q)_(ki)O(sh)200ֱI(yng)У
һ(j)쎟Ӗ(xn)W(xu)УֲӢ^(q),A^(q),ɽ^(q),m^(q)ȵ,ǺИOӰһ(j)쎟Ӗ(xn)C(j)(gu)
һ(j)쎟Ӗ(xn)W(xu)УһI(y)Ӗ(xn)W(xu)У_(ki)O(sh)һ(j)쎟(j)쎟r(ji)̎һ(j)̎(j)̎O(jin)̎ȫ̎BIMh(hun)Ӱu(png)r(ji)м(j)(jng)(j)ȌI(y) ˾ԁ(li)һֱeOM(jn)I(y)l(f)չƼM(jn)ȺƳW(wng)j(lu)++}(k)ںʽ̌W(xu)͡vn+̴ɡpnȫ3DģM漼g(sh)_(ki)չ̌W(xu)Rۃ(ni)⎟Y쾫®a(chn)Ʒ(hu)(yu)|(zh)YԴ˲ŽI(y)ƽ_(ti)ÿλW(xu)Tṩԃ̌W(xu)o(do)W(xu)(x)Ҏ(gu)俼͘I(y)ָ(do)ڃ(ni)Ă(g)Ի һվʽ(w)ƵĽI(y)ѭh(hun)l(f)չ(w)wϵ
c(din)4
Ϣƽ_(ti)ȑ(yng)ڻݶεČ̤Čb߶hP(gun)ϵ(yng)M:2h+b=600-620mmÿ(g)ݶε̤һ㲻(yng)^(gu)18(j)(yng)3(j)600620֮g߀318ɂ(g)(sh)Ҫӛ
ʩI(y)`О鑪(yng)Г(dn)ķ؟(z)
뉺IJλ(yng)СͺC(j)(sh)دBe1/4-1/3
ֹܷ(xing)Ŀеđ(yng)
1.
1(wn)}
2IQ(wn)}Ŀܵķ(du)(g)ܵķM(jn)з
3Qߣ
4(zh)У
5z顣
@ЩMɹĭh(hun)(ji)ǹ
2.ֹܷñʽӳ(xing)ĿӃ(ni)(xing)Ŀ(jng)T(mn)λ(du)(xing)΄(w)(xing)ĿֹܷĸʾԓҲI(y)
3.҇(gu)(sh)I(y)ͽO(sh)(xing)Ŀָ]C(j)(gu)(x)TÍλ؟(z)(sh)(li)ÿһ(g)T(mn)Ĺ΄(w)
4.ֹܷ(hu)¶HÍλ؟(z)(sh)r(sh)wì
5.I(y)(xing)Ŀc(yng)ԓƸԵ(xing)Ŀֹܷ
6.ʹùֹܷ߀_ÿ(g)T(mn)Ĺtoʹùֹܷ(sh)
B.O(sh)Ϣ
g(sh)Y(rn)(ROE)ʾg(sh)YӯˮƽROE=NP/EC100%ʽNPg(sh)ݵ(rn)\(yn)I(yng)ڃ(ni)ƽ(rn)(rn)=(rn)~һö;ECg(sh)Y
(jng)(j){(dio)ڇ(gu)҅f(xi){(dio)A(y)(jng)(j)\(yn)е^(gu)аl(f)Ľ(jng)(j)P(gun)ϵķҎ(gu)ĿQA͇(gu)y(tng)Ӌ(j)(º(jin)Qy(tng)Ӌ(j))A͇(gu)ع(º(jin)Qع)A͇(gu)(bio)(zhn)(º(jin)Q(bio)(zhn))A͇(gu)չ (º(jin)Qչ)A͇(gu)A(y)㷨(º(jin)QA(y)㷨)A͇(gu)Ӌ(j)(º(jin)QӋ(j))A͇(gu)(ji)sԴ(º(jin)Q(ji)sԴ)A͇(gu)ُ(gu)(º(jin)Qُ(gu))A͇(gu)Ŕ෨(º(jin)QŔ෨)Ȍڽ(jng)(j)
I(y)M(fi)(rn)Ҏ(gu)M(fi)Ɇλ̵ʩDA(y)
ģUM(fi)
ͨ^(gu)W(wng)YھW(wng)ϽM(fi)_J(rn)UM(fi)ҕ(bo)ɹ
И(bio)ļеĹǹξ˰ʩDDʾߴιӋ(j)Ҏ(gu)tӋ(j)õĹ̃
(xing)ĿCφr(ji)ڼsėlS{(dio){(dio)ķʽ(yng)ںͬмs
a(chn)(jng)I(yng)λκʽcĘI(y)ˆTӆf(xi)hߜpp䌦(du)ĘI(y)ˆTa(chn)ȫ¹ʂ(yng)Г(dn)؟(z)
ܣþ?y)P(yng)ʽ?y)P(yng)C(j)O(sh)ڼw⣻ȫO(sh)һֻзð_ͣӱU(xin)bֻSd\(yn)ˆT10r(sh)|L(fng)̶ڳ^(gu)10ӵĸߌӽʩr(sh)횲ȡʽ̶
һ(j)쎟̽(jng)(j)c(din)(hu)Ӌ(j)ʽϣһ֮
һ(j)쎟Ӗ(xn)W(xu)УɾĹ֮̎(mng)W(xu)һ(j)쎟́(li)һ(j)쎟Ӗ(xn)W(xu)У
Ӗ(xn)ԃԒM(fi)ԃ