}ĿijNXdz죬һ_(ti)XȾ(jng)^(gu)݆Ⱦ͕(hu)81_(ti)XŶȾ
1ÿ݆Ⱦƽһ_(ti)X(hu)Ⱦ_(ti)X
2òЧ3݆ȾȾX(hu)(hu)^(gu)700_(ti)
3݆
(sh)ȾȾX_________(ti)
ĿД(sh)W(xu) (li)Դ }ͣ
}Ŀij̵꽛(jng)NһNa(chn)Ʒ(bio)r(ji)M(jn)r(ji)ÿԪ̵
Ԫُ(gu)M(jn)@NƷĔ(sh)@NƷ
ԪN~۳ļ(sh)ͬ
@NƷM(jn)r(ji)(bio)r(ji)
(jng)^(gu)--Εr(sh)gN̵l(f)F(xin)Ԙ(bio)r(ji)@NƷÿ۳
ÿqr(ji)
Ԫtu
Ҫʹ@NƷÿN~ԓƷÿ(yng)qr(ji)Ԫ
鿴𰸺ͽ>>
ĿД(sh)W(xu) (li)Դ }ͣ
}Ŀ܇{T{λϣҕ^첻ĵط܇ä^(q)Dһv܇܇^ä^(q)ʾDACBCDEBC{T̎λõĸ߶AC1.4{TλACc܇^DE֮gx2(dng){TAc(din)^܇^Dc(din)r(sh)ҕĸǞ12c(din)ADBͬһֱϣ
1Ո(qng)ֱӌABCĶȔ(sh)
2܇^ä^(q)c(din)BE֮gľxY(ji)_0.1ף(sh)(j)sin120.20cas120.99tan120.21
鿴𰸺ͽ>>
ĿД(sh)W(xu) (li)Դ }ͣ
}ĿABDAD=BDABD@BDc(din)형r(sh)D(zhun)180õCDBCEƽ֡BCDBDc(din)EBCL(zhng)ȡc(din)FʹCF=DEBEFCDc(din)G
1D1A=60AB=4CFL(zhng)
2D2CDE=2CG
鿴𰸺ͽ>>
ĿД(sh)W(xu) (li)Դ }ͣ
}ĿDˮ(k)εęM߅ABCDADBCBC=10θ20бAB¶i=12.5бCD½Ǟ30㣮
1εADL(zhng)ȣY(ji)_1ף
2L(zhng)100@(g)Ҫʯϣ(sh)(j)
鿴𰸺ͽ>>
ĿД(sh)W(xu) (li)Դ }ͣ
}Ŀɵ30ǧ֪҃˷քeT܇Ħ܇
سl(f)ǰ
;܇`Щr(sh)gȻ^m(x)s·.D5еľ
۾
քeӳ˼҃е·
ǧףcr(sh)g
֣ĺ(sh)P(gun)ϵ(j)DṩϢشІ(wn)}
1T܇ٶ_________ǧ/
2˵ڶr(sh)x________ǧף
3ӳ܇е·
ǧףcr(sh)g
֣ĺ(sh)P(gun)ϵ.Ո(qng)
ı_(d)ʽ䶨x.
鿴𰸺ͽ>>
ĿД(sh)W(xu) (li)Դ }ͣ
}ĿijƷM(jn)r(ji)ÿ20Ԫۃr(ji)ÿ30Ԫÿ(g)¿u180ÿƷۃr(ji)ÿϝq1Ԫtÿ(g)¾͕(hu)u10ÿۃr(ji)ܸ35ԪO(sh)ÿƷۃr(ji)ϝqxԪx(sh)ÿ(g)µN(rn)yԪ
1ycxĺ(sh)P(gun)ϵʽֱӌ׃xȡֵxֵr(sh)yֵ1920
2ÿƷۃr(ji)Ԫr(sh)ÿ(g)¿ɫ@(rn)(rn)Ƕ
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