(2/2)ҳ
ͣ˹صĹ˻1842ϽһңܶӡԶԶ.
⻰е˹֪Բв
̫ƽҪӡ¶ԴӢ۹ĸ߲˵ܡ
ǻǿӢʧȥӡȡһûӡȵĶӡȹ˾ʣʲô
˹ʱһ˹Ҳһ䡪ӡֻ12.7ӢˣȴҪͳ3.02ӡˡ°Ǩȥ1:100λǰԱõԶʮսʿԭľһ١
ͻȻÿ¡˹µѩȼͷ̵ָȻзɿŵʧΪӢ㣬ҲΪӢң
ʵϣӢҶһ.ڵӢոʿɵһֳ߰ء졣
ԣ˹½ʵǡɶӡȹ˾ָӢҹ˾Ĺɶ
δսأ˹ڿڣ̫ƽα֤ӡȣ
ǴӻȡһţǡʮĵԴӢ۹ȨΧĻ̫ƽ֧ӡȫڴӢ۹ȨΧǩԼԼȷϡ
˹³Ĭˡ̫ƽǩԼ.ԼôǿҪԼ˭ҲԸ˰ɣ
±ʱͻȻ׳һöرļҡö쾫ġ̫ƽԪľתƽĹİ߽ӳ
׳˵Ľλָ֡ⰴסöңƽ̫٣̫ࡪΪȦأ
˹µȻΪƿŷʮľκ˶лϵˣڹҵķƽѾˡ½λֽҽƽҡŴ10ƽ̫ϡȱҪԣܶ൫ƺ̫ˣάͻƽıȼۣһ̫ƽǿȨΪ飬Ϊ̧һԺͻƽ̶סĸ߶Ҽϡ
ȻΪֽҡ
취УǾζ̫ƽᴴġûҡȻˣУߵòԻƽӵлƽ𡢰Ĺͬʱжսн
ҪȻȫеӦӡڰ
ʱ±ƹһļƽӢ̫ƽԪ˫ơеĺ˹ͫ
֪ζʲô𣿡±ħĵ˹¼ƵӢн̫ƽйͬƶȫȼۡһÿ800Ӣ.ңǻԹͬ.ʱˣӡ¬Ҳǰ͵ģƸߣ¬DzǿԳΪֽҵı֤ӡȵг.
˹µ˲俴ƻĿֲDZ.
̸˹µʻͷʱŵ¡ڣλھ뢷жǷݻҼƻͻȻһݽ飬̫ƽ
ǰĴǡ
Ǽ˹µصӡȵ˿ڣϷǵĻƽ𣬻̫ƽԪľĶгֲʱδ
߬ǷƤֽ·סʱȨȡڽڼҵϣ۹Ľʱʼ㡣Ӣʱ˹ͻȻЦղ۹ӽʱһеʱ
ǩĶ