                      ˿µϣ20050813գ

05.08.13, ӡʲôѧڣ
05.08.13, HbchenѹҲ黷ֹˣ
05.08.13, ʳŲԲ԰ʧ
05.08.13, βǺġȰ
05.08.13, Хѧѧһ桷
05.08.13, ʦͩĺ֮˵
05.08.13, 롶йѧйѧΧ
05.08.13, һһ㡶Ѧӿʲôʹ˲ԽڼΪ
05.08.13, չۡ
05.08.13, ӡ齣ӡСѧҵԽԽ˿̸ҹĽ
05.08.13, Sun Sam齣ӵһСѧ꼶ҵĽ
05.08.13, wangyuһĴСѧⷨ

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                   ʲôѧڣ

                            ӡ

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ǴѧУѧƸ顣20036£
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ĲǽʱƬȴǡ֮ڹǰӰ
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of Northern VirginiaСҲ˵Ǵѧ
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ɷݹ˾䶭³ΪһպεĻˣDANIEL HOƴӦ
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Directors17£10ǻˡϹĽԱ37ˣ
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ڡӢѧרҵޡѧרҵõĿ
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УDr.Fay AveryǴѧMBA˶ʿѧλࣨڣѧ
ϽƬ䷢֤Уȷͬһˡ

    ġѧ롰лݡʵҲûʲô
𣬡ѧʦȥġѧڡʵ

2005.8.13.

Ѻר

(XYS20050813)

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ѹҲ黷ֹˣ

Hbchen

첩@ð˸̸˼λ价ʿΪǻ
̸һԲ԰ģȴĿȥ걱һ: ú԰Ļ
޹˾˾ɳׯ220ǧ·1236
ܣĵŷߵλ;˵Ⱦ
http://forum.blogchina.com/p747450.html
http://bbs.bokee.com/p747836.html

ЩҿЦáԽԽ̫ƽľ--
ÿˡ

ѹʲôõ? ѽôУöٵ? û
ϰտô? Ҫѵ͵иҵǧ򻧣ѹ߾ͱز
ˣѹߴߣɱҪġûо
Ұطҵõ?

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˵ѹСȾȴеǣǿˡ

ѹߵȻҪͨģ50HzĵƵ磬ǵΧ
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Բ԰ʧ



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βǺġȰ



˰дġǸ㻷? һ̳ϣ
2005-08-07 00:45:54 IPַΪ211.139.90.һֱԳIP
˷:

ۻΣѰѻζֿˣ
ΣѧչۡгᡱҪ߶
ӻˣ͵ǰܲɷֵġֵǣ˼ȲΡ
̸ֲⲻԵľͼҵζ̸
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ǣԱˡΡԼʲôأΡ͡漰
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Ӧʵʵͽѧһµģ෴а
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ͬŬйҵɫ | й | ʱ䣺200574գ
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βɷֶѧӦΰԼá

˵ˣȥĳʵǱˣӶѣֵ
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ѧѧһ

Х

ǰڡ˿пԺԼԺڵıѧ
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оԱָ㣬СĹĶwww.plansky.net
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ڣĳϮ˭Ľ⣬ǰѧѾд
׳ˣ˵ѧѾץˣˣôǽ


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10ճܹվ֣



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ĻϢǾzʦȻڱ˵Ĵѹͷ̰УԺʿѡ
һιءzʦcʦpѧͬǣzʦԺʿڼ䲻Ҫw
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http://www.plansky.net/bbs/viewthread.php?tid=903Ѿɾ

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йѧԺооԱ

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ͩĺ֮˵

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    ΪŵıңұԿһأزϣԸ¡
˵ҵأǸ......ֱ̺ʤ飬
˵˵ҵĽڼ
ôжڼأ
ԽΪұһԭʮֵؽڼȫ칲ƣ
˯Сʱ5㵽11㣬᲻ö˯
һٷֻһͷͰƿ̣᲻ö
ϴ˼ѡ᲻öϴ
һֻ롪᲻ö
......
̫ԵãԵñл

֮ôѧܽJJѧ񣬶ϣǰҮ³ѧ
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ӿǿҵı̬ʹ˲ԽڼΪ˵ʵûģҾǿ
ҵķ

֮ǰҪĵģȻһӵƫ˷򣬶ôɵ

Ѧӿҵķֽߡ

Ѧӿǿҵı̬ʹ˲ԽڼΪ
http://cul.sina.com.cn 2005/06/19 16:04 ¾
 ߣѦӿ
йھɣɼݣǿҵı̬ϲ
ڼ󼸺Ѿһײĵ¡
ڱͣйΪһԴѹԴΣйչ
ƿ֤ʯ͹ӦҲΪйĹҰȫ֮һ
ȱԴĿǰйԴ˷ѣѾصвδķչ
򵥵֣ÿһԪֵGDP1995ԪֵΪ
׼ҪԴձֻҪ3876B.T.UӢλ¹Ϊ
5269B.T.UΪ5998B. T.UΪ10575B.T.Uйߴ35764B.T.U.
ǲȡжⷽĲ໹ԽԽձڶô
ûԴ
1970ʯΣȫĿֻţʹձ˿̹ģ
нܵߣһϰҲ˽ܵϰߡ1973ձ
ҵֵԴĻƽΪ鶨顷ǩԼ
ձҰĲĽܼƻĴӡ
˵ԡյ䣩ԴѾΪձĺĹҵսԡ
һΪǸǮ飬ԾԼáܾڡ
鶨顷ǩ֣ҪǩԼھϵľǣڿ
δӰһľձŷ˦ʵʩ鶨
顷ҲǽĶ
ҵΪһֱкʹSUVҪ̶Խ
ܳͲмһˣ϶ھͼձͷ͵ʹõĻ
ͼ۴ǣԼҲʼSUVձķͱ
Ϊܳ䣬ͳεóľȻ
Ѿ˻ϳ͵ʱļֲֻпӴŻ
ۿȻƵƵձ˾¡
ˡձ̫ܰĲռÿ100Ԫг
һ롣1981ձıһÿõ80%.
ձгϵʽ䣬ʹո뼼õֻ൱10ǰĲƷ
İ˷֮һĿǰձҵ֣ͼ˵ϰջɵȻ
Ϊ˽ܣҲҵ˾޴̻
йȥ500˽˳ձΪ
гδڣйΪڶг
ǣй˶Ի͵ĽܳϤSUVȴԽԽСرĿǰ
֧ޣҼڵ͵ϾһԽԽ
򳵣һԼ˱ȽϰĽܼĲáڵĳҲ͸Ը
ڽ϶ԽйĿǰסĵһ󹤵أȽĽܾԵ
ûռɹĽܲҲٲáйΪһҪܵĹң
ҵڽܼϻûκơ
ľ棬Ȼϵ⡣ϰ׺ĻҲžԵ
áйھɣɼݣǿҵı̬ϲ
ڼ󼸺Ѿһײĵ¡Ҫǣйûо
1970ʯΣĴֻšȻýڽϽ൱Ŭ
һϰûз֮ʹ˵б˶š
ֻ˵˵浽ʵоһɶ
һϰյĽʶĮ͸ҪڽϰݸҪĽɫ
ͨ˰յķʽͳķչܳʹãг
·Ȩչͨסϣܷĸ˰
ŻݵȡͬʱҪӴܼͶʣ𽥽йڽܲҵϵơ
δ꣬ԴͻԼйķչ

Ѧ˵ˣ˵ˡ

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̫ס



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ܺ

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չ

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£˵³Ѹ˰˲ƣеʱЩÿεʱ
һеĶڵˣȥ񣬾ӣѧѿջأ̬
𣿡

ˣǲܲͬϸӵĿ³Ѹ̬ȷʵ˲
ƣ³Ѹ⡰һȷʵòԡճ˵˼Ϊʲô
ɣۻʲôĿģôڱĲǰѶôһ
أֽҲˣˣ˵Ҳˡһ𣿵Ҳ
ˣ˻ܶ㣬ըҲˡһըҲˣ
ԩ֮γ 

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һйݡ׶صը¼ԼǣҲҪ


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ѡҪѡķʽ

ʲôҿԸǣ˾
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ͽܣȻͷ­Ѫɻײ˫Ǵ¥ͬھ
˲ġߵµķӣڽٵķӣ ΰ
ΰΰ󣡵¸߲ߣߣڽ黳𾴣𾴣

ôһͷˡ³Ѹһը
ĵ³ѸͱȱǸΰһΪʲô֪³Ѹ
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³Ѹڱѧǰࡰǧ򡱡ǡӡǰ
һŻըùӲգͬھѵǱ
ѵͽܡͽܡһȥıΰ˫

³ѸֽʾһļңҲ
ĴȣըҲͿ˼ˡ

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齣ӡСѧҵԽԽ˿̸ҹĽ



齣һһСѧѧԽȲֺ֡Ϊʲô
أ˵˵˵ô

ĿѧһΪ80ƽ׵Ƥһ޸ǵĳ
ӣôӵ󣿡

ʵһܼ򵥵Ӧ⡣

꼶ֶӵĿαϽˡһĳ
󡱣˳˴㿼һǷǵúΣ
Ϊһĳ˵ĺӡ
Ϊ6 
Ϊûǣֻ5棬
80516
Сѧûѧƽ֪4416
һ߳Ϊ4׵

ΪʲôҪûأΪ˾иǣֱ̫ӡƤΪʲô
û״أΪ˾֪ҪһʲôĶˣʵ
ô˲ܡ

˶ʿŮѱסһҲ֣Ϊǵ˼·ǰ
˵˼·룬ĸߵѧ֪ʲô
ˡPSøߵѧ©ԭΪһ80ƽ
ƤǡƳɱΪ80ƽ׵޸ǺӡƤ״Ҳ
Լ֮һҪôǻԼ״ԸһЩǺܸ
ŻˡһҲ֣Ϊ뵽Ƥʮ䡪
ʲô״ʲô״

˶ʿѧΪʲôأΪû⡰˵˼
·ҹһΪ̬ص㣡

GOOGLEһ¡˵˼·ݶࣺ

ԼʵʿԽĿ˼˵˼·

޶Դô죬ҪһҪճ˵˼·
ԼһҲǶԵģʱò˷֣мһ㡣

㿴µĴ⣬ȴûпߵıƶĴ
ʱ򲻼þ˭ǳˣֻܰ˼άȥⰡ
ΰճ˵˼·ͳ˹ؼЩʵҲκοԵĹؼ



ĿҪ³ҪʲôȻܸЦȴҹ
ʵСʱеСϲʼΪʲôЩԿС
ҾǶ;ָʦ˵ʦûʦĻشһ
ǣĿ⣬飡

κο߼϶ҪϽѧ⡣ҹĽ״ó
Ĵүǲؿ⡪˵ԾǶԣҲԣ˵ԾͲԣ
Ҳԡò˷Ϊ㲻֪ôģ

ǰһֵ÷зĸ߿¼Ҳˣ˹ҪЩ
֪ʶ㣬ڳʱûпǵ棬ĸѡ𰸶Ǵģ
¿Ӻڶ࿼

ҹʵʹϵʱɣҲκô
һûκν취ֻ򶼲ֶ˱Ͳ
ģ˲ƽοЩ߼ϽĿϺ
˷˴ʱ䣬ӸˣӰ˺Ŀԣ
ЩӦԽĴĻǸĸѡ𰸶Ǵϡ
Ϳĵ˷֣Ȼû취ȣйزŵȻžԲˣҪ
ôԷŭĿ

ٳϣڡĦ⡱һҹĿҲһ
ȷʲôҪǷ֪õʲôĴ𰸣
Ŀԣѧ磬ҹĽ˲ҲͲˡ
ֻһȺȺֻű˼·ߵūţ

֮Ծ齣һһСѧѧԽ֣Ϊ
Ŀ⣬齣һҵѧ⣻

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齣ӵһСѧ꼶ҵĽ

Sun Sam

Ŀ,ΪСѧѧ,ûǲҪʲô̺ͼֵ˼.Сѧ˵,
Ҫкܺõ˼·,ǡǡʽһֱᳫ.ܿϧ
,ЩܹߵȽķ,Լ˼·Ľɬ,ȥָ߰
Ŀ̫,⾿ԼĴ,ѾܵĽĴ?

߿Ŀʱ,һӦҲ:Ŀ̫,ӦСѧ.
,ߵĳѧʦһ,"κⶼһ˵Ľⷨ".Ȼ,
Ϸ˾ԻĴ,Ϊһ˼ʱѧϵָ,Ǻ.
,߾ͲȥñЩĶ⣬˼ܰ
óʶ

ĿѧһΪ80ƽ׵Ƥһ޸ǵĳӣ
ôӵ

֪Сѧ֪ʶһڱȷ£

ôνת֪֪ʶأ֪֪ʶҪҪ
棬ĿҪĺֻ档ΰһ첹أ
ˣһģһĺӣһһ档һ
ˡıǸ160ƽףʱĿҪ
ĺӵҲġ

֮Բ䷳ؽ˼дΪôҿ˼̣ͬ
ڽһӵǻ˼֮

ǵСѧѧѧһѧ˼ά
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һĴСѧⷨ

wangyu

ṩĳѧⷨõ˸еľԲʽСѧ˵
⣻skywalker00ѵĽⷨȷʵõһǰ᣺
ĳΪⱾҪ֤

ҳá⡱Сѧѧڳļ⣨µ
ⷨõ΢ֵ˼룬СѧеĴӦܹ⣩ ô
˵ӦǾѶˣԴСѧ꼶ѧ˵ȷʵеΪ
ѡ

֪Ƥ80ƽףһ޸Ǻӡ
ΪֱǺӵĳߣֻһԼƤ
80ƽףСѧǴʱӦȿǼΣ̶߶ȣ
һĺӡ

߶ΪhֱΪabҼa>bʧһԣ
һӺʣһƤҪȥô
߶һַһӺӵĶ̱ߣڶӺӵĳߡ
һַӵĶ̱ΪwôӵV1ahw; ӵ
Ƥa+2hw
ڶַӵĳΪzӵĺV2bhz
Ƥb+2hz
ΪַӵƤ䣬ԣa+2hwb+2hz
a>bȻw>zԻawbz=2hz-w>0
ַĴС
ΪV1V2ahwbhzhawbz>0
˵ڸ߶һʱӶ̱ԶԵõϴĺҲ˵
ʱֵԭȷҪε
ӡ

ٿǸ߶Ȳʱʹĺ
ͬһεĺӺʣһƤҪ
ȥôǵıεҲַһӺ
ӵĸߣڶӺӵĵα߳
һַӵĸ߶ΪxôӵV1aax; ӵ
Ƥ4ax
ڶַӵĵ߳Ϊy
ӵƤa+ya+yaa+4a+yh4ah
=2ay+yy+4yh
ӵĺV2a+ya+yhaa h=2ay+yyh
ΪַӵƤ䣬4ax2ay+yy+4yh
ڿV1V2Σõ4ax2ay+yy+4yhĹϵ
V1V2aaxh2ay+yy
y0.5aaah+0.25yhy=ya0.5ah+0.25yhy
ҪжʽڻС0Ϊy0ֻҪжڵͿԡСѧ
뵽yһСֵΪʣһƤˣԹؼ0.5ah
ΣֱӾV1V2
0.5ahΪh<0.5aV1V2>0˵Ӻӵĸ߶ȣ
֮0.5ahΪh>0.5aV1V2<0˵Ӻӵı߳
ϣȷӸ߶ǵ߳һʱӾ

ۺĿǣӵĵβҸ߶ǵ߳һ
ʱӾˣ
߳Ϊa߶ΪhôУ
4ah+aa=80
h=0.5a
ʽϽ3aa=80
ȻΪ15ƽ160/9Լ68.85ס

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