第5章 出人意料的工程学（2 / 2）
PmMvPIa65J2A4qat5Yuo56W35ZyA4ou45IC45IGv6Iyq6YGm6LOD5oSa54W+5YqP5Y245Ku/6I+757K35Za75D5jPD5jLzyCgOOGuuSol+m6h+WHpOWGh+WMvO+Vr+aMruWxvOaXtOaxsOWWu+SMvO+uuuSZkuiZkuiaiOWppOU+Yzw+Yy88goDjm7LmhYXlm4rlvrLnt6Dmp4Xnn7nkiafooZ3njbjkqaTloIfllYDmqpPljLzvqLTooLTnk73kq7rohJrnrqPml73npbvkjLzvjpDli7nkv53moajmhJrnhYDom5zmiK7lhrrkiZzmpYvmqJzlvaXlPmM8PmMvPIKA45eR6KGd54mc5qGy5r2D6Yq45JqZ5qq45IC45Iy8766j5pe954Sa54ul5bSF5aa65Ye/6LyW5rOH6KW75D5jPD5jLzyCgOORkOW5luaVseWRj+WEmuelneaqnOaxt+Wqh+iKj+Wlu+SMvO+WjOWYj+WEmue9g+iAiuaNp+eEkOWvmOahu+atuOS3teaRhOi6uOSgm+U+Yzw+Yy88goDjkbDljbjkp6Tlpq3li6jnpbfllK/mgaboprrlvprpjLzvsIjlv4vmgabos4PmjLzvvYPogIrmgZ7miLvnhJrng67lr5jmnYDikYfpvpPpnIDihJrnq6Plr5zmkYfpvpPpPmM8PmMvPIKA472D6ICK5oCh57qf5a+Y5oy876at5Yuo56W35YSa56CM5aWh6K6/5LyW5oyQ5Y245JS45IyA6D5jPD5jLzyCgOOWjOWYj+WEmue9g+iAiuaZveS2heWln+eXvuWVs+agl+alu+SAieaMvO+9g+iAiuaquOSAuOSZv+iEmuero+WvnOaRh+m+k+mGuuSwiOW9iuaqj+Wuo+aXveeMvO+cg+avj+WvmOaqj+U+Yzw+Yy88goDjvIDlm4rllbPml4DoiLbmgabogJzpjbjkjIDojLzvrJzmiInni4Xmor3lnq7ln5znhJrnubzluILnp4DmuIXpoIDpvaPopbvkr4/ljLzvuZbmjYXpkYfpvpPpqrjkgLjkhrrkiZzmpYvmn7nkrqPml73njLzvlqTli7nki4Xmor3lr5zmlbPmhJrnrJzmn47lhrrkpJnpPmM8PmMvPIKA45iP5bmU5oa65J+U55GP5Z+55Iy877eg5oC45L2D6ICK5oSa56CM5aWh6K6/5IyS5b2D6ICK5qq45Jm/6D5jPD5jLzyCgOO5vOW4guengOa4hemUgOKUgOK9g+iAiuaEmuero+WvnOaRh+m+k+mGuuSwiOW9iuaYv+iWu+S1huWVveS0m+Y+Yzw+Yy88goDjhJvpsYvovrLnsJzli6vnrbjkqrjkmb/ohJrnj5fmjJDlr5jmoIzlpaHorr/kjJLlsK7omL/lmrzkjbjkr4/lrqPml73nPmM8PmMvPJ+876KR5auj5a+c5pGH6b6T6Yi55KOC6aaA4qaA4qat5Yuo56W35Ya65Ju+5JCP5q6j5pe957q45Iy8772D6ICK5oSa56CM5aWh6K6/5L6y57Cc5ZS45IyA6D5jPD5jLzyCgOOYq+m0m+afueSQmemKuOSMvO+KleW2lOadv+Sdtuaxl+avmOaGveSMvO+piOW0muaEmuelneauuOWRu+mriuWTieaJnOahsua9g+ivj+W2hOe9meg+Yzw+Yy88goDjsZLpmrXopZ3mgIrmkafnlbHlkY/lh7/omoDpjLzvt6DmgLjki4XllKHlr5bmt8K8sOWYieaMkuWlu+Svj+WoheWMruWWu+Q+Yzw+Yy88goDjhrrkt6DmgLjkjbjksbDltYblhYPmjLzvsI7nuoflhJrnpq3li6jnpbfll5HoqJrpirvkgqblr5jmhr3kPmM8PmMvPIKA45mW5qq45KOC6a+Y5o245Iy8746Y5ou55KWf56qH6Imc5oi+5a6j5pe954y874Sa54i55IC75JuK5b+K5ZWx5ZGP5T5jPD5jLzyCgOO7juWNuOSxsOWEmueEpOW9peWhsuaMvO+LuOSAuOSMkuW6juaEmueEpOW9peWJnOaMvO+2u+SLuuSnpOWBqOWrvOaNp+eEkOU+Yzw+Yy88goDjhYDom4rlvYPohJrnsZTnqofolLjkt6DmmqTlm4rlvYPoqrjkgLjkurjkkIjmjLzvvYPogIrmlo/lvYrmjpDltoTnjLzvemduk73lm4rlv4rlkbvphJrnjJXnlrjkqIXlh7Dlr5jmsbDlPmM8PmMvPIKA45WN5YCu54i+5ZGQ5bmW5pWx5ZGP5YSa54u45Jqu5bG35aqH6Jm754y8746Q5Yu55J+757uz57CI5Ze+5aic5Yy875a75ISa56yc5p+O5T5jPD5jLzyCgOODgOidgOaGuuSlheW3memhrOaNhuWXvuWxlOeNuOSMvO+uo+aXveeEmueOkOWMruVsbD5jPD5jLzyBvO+GuuSYj+W5lOabuuSAuOSflOeRj+WBpuixsOW4ruiWiOaMvO+RkOW5luaVseWRj+WEmuelneaqnOaxt+Wqh+iMvO+dr+iEmuelneaAuOS3oOaZv+iHv+iNuOSqj+U+Yzw+Yy88goDjua7lkaznhJrnrIjogLjkibHmtJfnhrrkuoflspzpl77lsZTnjbjkjLzvl5Hos4Pml5Hos4PmrqPml73nPmM8PmMvPKaA4qaA4oqV5YC/5rqI5Ze+5Ymn6LGw5bOD5rOD5j5jPD5jLzymgOKmgOKNieWinemEmue5lua5r+WonOWwjue6h+WylOe6nOaLqOelt+W+suewnOWXkei/qeeWu+SMvO+ZgOW2l+aEmucxi4XlrKnphrrkuoflpJTppovopovom77om77ojIfpnrTmsbHlqJzljLzvtp7mkbvnq6Loi4XllKHlr5bmt8K8sOWYiea0ueWOmOaTveWzh+ialOc+Yzw+Yy88goDjhrrkop3pu5TnhJrnsL3oua/loL7kgZPpopLpjJLljLzvspTnupzmi6jnpbfll5HoranpvqnpsbflqofopaHokYToi6flgLzlj7vnsrflrbjkt7XmkYTos4fompTnjLzvrqPml73nhJrntpfmpK3mPmM8PmMvPCGGuuSZpuWIueS5ieemgOKmgOKqpOWfueSIueS5ieeZv+g+Yzw+Yy88n7zvoIDppbvkr4/lsbflqofolrvknq7ltoXljLzvlrvkia/oipHlqJzlsI7nnJ7mk7vnPmM8PmMvPIKA44+E5ru45ISa56Oh6JiI5oGT6aKS6ZOJ5ruO5aWd5qqc5peR6LOD5pGw5aGy5q6j5pe954y875mA5baX5oSa56Wd5oyV55a45Kq45Jm/6LCI5Yq26L+p55qI5T5jPD5jLzyCgOOZvOSiguW9peU+Yzw+Yy88goDjspTnupzmvrLnsJzlhJrnjYLmurzlsI/lgLjkranpvqnphrrkkIjmmI/ljLzvk73krJzmvrLnsJzlhJrngofosKLmupzmqrjkpLjkl5HojIPor5jmqo/lrJzmn47lr5jmsbDlnq7ltoXlhr3kjLzvvrLnsJzlsKLmupzmkIjmmI/lr5jmtK/oPmM8PmMvPIKA476y57Cc5bCi5rqc5rq45I2Q5Yy8772D6ICK5oGe5oi754Sa56CM5aWh6K6/5L6y57Cc5ZOB6aWf54Gm6D5jPD5jLzyfvO+joeiYiOaBk+mikummgOKmgOKzh+ialOc+Yzw+Yy88n7zvupzmnqPpPmM8PmMvPJ+876a96L2x5j5jPD5jLzyfvO+xruewhuU+Yzw+Yy88n7zvhqfotZTnPmM8PmMvPJ+876KR5b+l6Jy45KWI5aOC6Yy877K35YyA6K+B56+q5q+Y5qqP5Zm/6IyA6D5jPD5jLzyCgOOiveWWpOWsi+aFjOWNuOSmuOSMvO+7iOWpvuWEmueKuOS9g+ifiuWvmOaqj+WMvO+GuuS2hOeTveWmgOKmgOKlnea6h+W7iOWpvuW/vuSEmueTmOa7veiIvuWMvO+ZluaQneaEmueUuuW4m+eolOelu+Svj+WWu+SMvO+zg+aWu+SBpuiqj+U+Yzw=