и һ헺ҪĿc l(f)]ԇ͕pһЩСи ɣи
}һ}ӛ˹Pӛ](yng)}Ŀӛ˹Pӛ]
ܶ˶(yng)ӛ˺ܶPӛ}ĕrs֪ԓ߀ώnx헷ǵ҅sl(f)F(xin)]ôrgҁff@ô£νQ
1.WӛĹPӛ
ĹPӛӛey]зֶεR]c̖ѹPӛ Ūһӛ˺ܶ~һӵc]ӛֻ㮔r~RԼJRô@NrӛùPӛǟoЧġ㲻֪ӛʲôҵĕr϶ҵôQDZMӛPӛĕrзֶRc̖ƽrӖ(xn)ԼWs
2.(j)xȥPӛ
҂l(f)F(xin)ʹfСģԇ߀ ĕr@rƽrӖ(xn)ĿץP(gun)I~ıܾ͑(yng)ԓwF(xin)¿MУֻܑ{ܿץסXҪ~R ~R(@ҪƽreӖ(xn)صԒÿᆖشӛImportantӛ)@rĹPӛҲnjƶǶ^y҂Ҫ}ɺxȥƹPӛķ(j)ŵλúx헵P(gun)I~RČ(yng)ȥҹPӛ
1)҂Ҫ}(j)}P(gun)I~ȥλPӛӛ}~Rôͱ^ȥλЩ}Ŀ@һֱ͉ҵͨ@ʧ
2)ʧ҂ҪҪؿPӛ]õMrgҪ_ʼxx헵ĕr҂Ҫ(j)Լ һЩƬϢƽre۵Իx헵߅߅ųF(xin)^~RĕrԭЛ]Ќ(yng)]оų@ЩϢ]ᵽԭ෴Pӛλò(yng)ȵ
@rl(f)F(xin)һ㶼ų2߀ʣ2
3)ʣ@ɂ߀ЎN
a. xP(gun)I~_˼ȥPӛλ(yng)ҵ˼Č(yng)ô@x헾njġע˼Č(yng)һԭ~@Pӛ~RxбČҲܛ]ČֻҪӵĺ˼(yng)˾Ϳˡ@rc?zi)Ŀx(j)(jng)Ԓ}ܶԭ~ҲøĿԒ}xܶͬxČ
b. x~(yng)߀Ǜ]Ќ(yng)@rֻһٌһɂxųһӲVܿ϶@һe`ϢxxN}x헡һ㶼Ȼ@NLUܱCٷְ١ɶҲ] @һоֻ^҂мg(sh)!
}˺ܶζ18-22ַ(ni)(f)˺ܾ ˺ܾã߀Dz
ЂͬWf 18Ȼf P(gun)Ic˷@ӵԭ“] P(gun)IcЃɂԭ
1֪ P(gun)IcԾ͛]ӛPӛ;
2 Ǜ] P(gun)Ic”ķN?
X18ֵr(yng)ԓǃɷNе
һҪӖ(xn)P(gun)Icһ㶼ʾ̖ҪʾԼ@ЩrcԅY(ji)(gu)
ڶҪ ԾӞλ ˼ĿһһҲ2-3һץȡ˼ ҪѲJRĆ~ժ ǿƌW
һµʹ(yng)ԓǣ
1. Pӛ}ȫĵ߉ȫĵĴ ӛPӛҪܷͣӛҪc]ӛٷ(f)@^@ǾģrץϢץҪc
2.x_x헌(yng)ԭĂ~ĂʲôǰǷʾe`x헣ʲôeĂ~ReҪʡ
3. һһҪ 2-3 ͲҪ~R}ԭ һ飬ժ~^ȥҪMrg
4.ھ ^ҼС̖~߉磺actually, in fact, problem, special, but, however, evidenceȵ潛(jng)cһƪ¿Y(ji)10-20@ӵrl(f)F(xin) ͺB(yng)ϲg10ƪõrh15ǰ}Ŀ}Ŀ
5.Ҫ߷(yng)ٶ߀ֹͣr£ ȫƪcϢ@P(gun)I~ ץȡӵP(gun)I~˼߷(yng)ٶȺ;ʶÿһƪ͉
@ӈԳ1-20ƪTPOкܴի@
}и yˣ҂ԓôk?
1.ҪM}z´ٰћ] һ¡@hhҪ м ˼֮gP(gun)ϵ֮gP(gun)ϵcʾ~ͺҪ P(gun)I~ҪҜ ֮ҪP(gun)I~ Ѿ ЄP(gun)I~һ P(gun)I~ ٶȡɂǻ
2.Ҫx헷һxeʲôʲôҪx߅@B(yng)_}˼·ÿεe}ҪΪe`ԭǛ] Ҋˣe?Լ͕ҵԼe`ʽ͕áx헷}ĕr@_ҵ_𰸡
3.(f)Pӛ҂һֱ{(dio)ξӛٶ´`fҪ@ُ{(dio)һ¡Pӛless is more ԽԽӛúܶɶҲ] ᱾ĩ Pӛoþ ԽԽ࣬PӛԽԽPӛP(gun)I~ һӡǰ߾Ԕ
Y(ji) }--(f)Pӛ-- Һ˼P(gun)I~R--P(gun)I~ --x헷 (x헿ԷڵڶҲԷһ)eƽrXõһӏڿoB(ti)ZٿĕrRΣ֣(wn)l(f)]F(xin)ƽr_ʸץϹr
}ģи Pӛs̖
и PӛҪWs@Ӳ܉?q)ĉ?߀` (ni)һ~R҂hȡǰ3-4ĸgoĸ磺meteoritesmete rt @ӾͲñbܶs̖F(xin)ڽo ؏(f)ʱ^ߵĆ~ôǰÿs̖(ji)ʡܶrgϣ