e{(dio)O(sh)Ӌ(j)
1
e{(dio)ؓ(f)Ӌ(j)㣺{(dio)b֮ǰҪӋ(j)Ҫؓ(f)@Ӳܸ(j)ؓ(f)xC(j)(du)סլԇo(h)Y(ji)(gu)ؓ(f)ɞķgӋ(j)ؓ(f)ɵĕr(sh)Ҫ]gЪؓ(f)ɸϵ(sh)1.10—1.20߀Ҫ]ҟo{(dio)r(sh)زؓ(f)
2e{(dio)ϵy(tng)xO(sh)Ӌ(j)(du)Ҫ{(dio)ϵy(tng)Ĵ_ҪCϿ]\(yn)Èʹc(din)I(y)ȶ(g)K_mĿ{(dio)ϵy(tng)
3e{(dio)·O(sh)Ӌ(j)C(j)҃(ni)C(j)⣬{(dio)·Ҳ(g)ϵy(tng)һ(g)ҪMɲ·O(sh)Ӌ(j)ˮϵy(tng)O(sh)Ӌ(j)L(fng)ϵy(tng)O(sh)Ӌ(j)ˮϵy(tng)ɹҪ1.2m/s֧Ҫ0.6m/sң(du)L(fng)ܣ˽L(fng)Ҫ6m/s֧L(fng)ٲ4m/sL(fng)L(fng)ȡ2m/s
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{(dio)cy(tng)C(j)Ĵ^