锟斤拷锟(d锟斤拷ng)锟酵诧拷锟斤拷锟紺(j锟斤拷)械锟斤拷锟(d锟斤拷ng)锟絚锟紺(j锟斤拷)械锟斤拷锟(d锟斤拷ng)锟侥傦拷锟斤拷锟斤拷
锟斤拷(l锟斤拷i)源锟斤拷锟叫學(xu锟斤拷)锟絎(xu锟斤拷)锟狡網(w锟斤拷ng) 2009-09-08 15:01:20
锟斤拷锟斤拷1.锟斤拷(ji锟斤拷n)锟紺锟斤拷锟(d锟斤拷ng)F锟斤拷-kx{F:锟截忥拷(f锟斤拷)锟斤拷锟斤拷k:锟斤拷锟斤拷系锟斤拷(sh锟斤拷)锟斤拷x:位锟斤拷锟斤拷負(f锟斤拷)號(h锟斤拷o)锟斤拷示F锟侥凤拷锟斤拷锟絚x始锟終锟斤拷锟斤拷}
锟斤拷锟斤拷2.锟轿擺锟斤拷锟斤拷T锟斤拷2π(l/g)1/2锟斤拷l:锟絒锟絃(zh锟斤拷ng)(m)锟斤拷g:锟斤拷(d锟斤拷ng)?sh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷俣锟街锟斤拷锟斤拷锟斤拷锟絣锟斤拷:锟絒锟斤拷θ<100;l>>r锟斤拷
锟斤拷锟絇(gu锟斤拷n)锟斤拷锟絔
锟竭匡拷院校锟斤拷(k锟斤拷)锟斤拷锟斤拷锟斤拷W(xu锟斤拷)锟斤拷锟絰锟斤拷锟絀(y锟斤拷)锟斤拷一锟斤拷锟斤拷位锟锟斤拷锟
锟斤拷校锟斤拷?j锟斤拷n)?sh锟斤拷)锟斤拷
锟斤拷锟絀(y锟斤拷)锟斤拷?j锟斤拷n)?sh锟斤拷)锟斤拷
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