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      1. {Ŀ

        rg2024-07-04 03:05:33 { ҪͶ
        • P]

        {УĿ

        {УĿЩ?СһЩP{ĿĈPYһСɣϣЎ

        {УĿ

        (һ)܇

        1ԇ܇v\·

        Dγߴ磺(ɣ170.6L447.3S254.8)

        W --쌒ȡֵ܇(܇Rͬ)0.6m;W=170.6+60=230.6

        L --܇λLȡֵ܇L0.7m;L =447.3+70=517.3

        S --܇ȡֵ܇L1.5;S =447.3*1.5=670.95

        h --܇ƾxȡֵ܇L1.5h =447.3*1.5=670.95

        ԇ^܇vM;вͣ܇ĵ·һ˿ƾ(܇퉺ƾ)܇ͣ܇ǰMһ^ƾ܇ͣ܇ǰM܇졣

        ()µcͣ܇

        1.ƾ;

        ͣ܇Uȡֵ0.3m;

        i --¶ȡֵ10%;

        l --Lȡֵ(QȫL)܇ڵ30mС܇ڵ20mĦ܇ڵ8m;

        R --Q돽ȡֵ30m;

        S1S2 --ͣ܇ƾͣ܇Uľxȡֵ0.65m15+50=65cm

        2Ҫ

        ܇vʴ_ͣ܇,ƽ(wn),܇vú𲽕rgó^30s

        ()ȷͣ܇

        1ԇ܇v\·

        Dγߴ磺

        19.6m(߅ƾL)

        L --܇λLͿ܇1.5܇Lp1mС܇v1.5܇L1m܇v1.5܇L;

        L=447.3*1.5+100=770.95

        W --܇λ܇0.8m;W=170.6+80=250.6

        w --܇1.5܇0.8mw=170.6*1.5+80=335.9

        2Ҫ

        ܇vڎǰͣ(wn)һε܇;ͣ܇܇݆܈܇߅λ߅

        ()

        1ĿDOӋ

        돽:؛܇Ϳ܇܇ȡֵ12mͿ܇d؛܇ȡֵ9.5mС܇ȡֵ7.5m;

        ·؛܇Ϳ܇ȡֵ4m܇ȡֵ7mͿ܇d؛܇ȡֵ3.7mС܇ȡֵ3.5m;

        L˷֮A(⻡L17.66mȻL9.42m)

        2Ҫ

        {܇vďһǰM룬һDٶƽ(wn);ͣ܇܇݆܈܇߅

        ()ֱD

        1ֱDĿDOӋ

        L --·Lڵ1.5܇L;L=447.3*1.5=670.95 L445ףL800

        W --·С܇S1m܇ǰS4m܇vS0.5mW=254.8+100=354.8

        2Ҫ

        {܇vҎ(gu)ľ·񂣬һֱDһͨ^;ͣ܇܇݆܈܇߅

        {УĿơP£

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