B=业 。d")-1 成m由三pQ吻 1 dp 1.pae h p dl p l P-p≈fpn-t) L。-卫g*g,-1)=gN p 上式8个物理量的单位和量纲分别为 la]=w =J=N:m-g:mm=经→dma=M0 m2.K s.m2.K s.m2.K s2.s.m2.K s3.K u=m→dmu=LT [0=m→dim1=L []=F →dm=LMT-3oH m.K Lu]-Pa-s-N.s-kg-m.s_kg m2 s2.m2 s.m →dma=LMT [pj=s→dmp=L3M m J N.m kg.m.m m2 e,]g:k”K→dmc=ETo s-g→dg0)=Lr 设a=CI龙rp'c(gA) 由量纲相等，得 MT-=IT-LIMT-LMT-LMLITIT-28 =L+b+c-d-3e+2/+gM+d+eT-a-3c-d-2/-28⊙-c-/上式8个物理量的单位和量纲分别为 设 由量纲相等，得 w dt t t d dt d dt m d dt m dV V − − = −   −  − =  =  =               1 1 1 ( ) 1 2 ( )  −  −  t t    w g g t t g t   w − =  −        ( ) 3 1 2 2 2 2 2 3 [ ] dim − − → =   =      =    =   =  = MT s K k g s s m K k g m m s m K N m s m K J m K W   1 [ ] dim − = → u = LT s m u [l] = m → dim l = L 3 1 [ ] dim − − → =   = LMT m K W   1 1 2 2 2 [ ] dim − − → =  =    =  =  = L MT s m k g s m k g m s m N s  Pa s  L M m kg 3 3 [ ] dim −  = →  = 2 2 1 2 2 2 [ ] dim − − → =   =     =   =  = c L T s K m s k g K k g m m k g K N m k g K J cp p 2 2 [ ] dim( ) −  = → gt = LT s m g t  f g p a b c d e  =Cu l    c (gt) a b c d e f g c d e a c d f g c f a a b c c c c d d d e e f f f g g L M T MT L T L L M T L M T L M L T L T + + − − + + + + − − − − − − − − − − − − − − − − − − =   =   3 2 3 2 2 3 1 3 3 2 2 2