![]ʽsO(sh)Ӌ](http://m.ra-putian.com/images/ny6.jpg)
![ͺ]ʽs](/upload/ay (248).jpg)
ͺ]ʽsˮ
ͺ]ʽsˮһ2~4,_ʽsˮһ8]ʽsc_ʽsēQe֮ȼs1:4,\^ˮ֮ȼs1:10,]ʽ_ʽɷNʽY(ji)ϵĻsǽ(jng)
ͺ]ʽsˮٞ2,픇ˮٞ3롣]ʽsMLܺͳLھbˮ,\ԄP(gun)],Կˮ
]ʽˮ:ԁˮܵٞҪˮܵĴСˮĉˮĴС҂6ğˮÿ犮a(chn)625ȵˮˮܽes1ƽˮܵ=6*/1ƽף/60=/=1/
]ʽˮ:ʲôҪҎ(gu)ˮܵS?
@ǽ(jng)ĵv(wn)rxٴˣ͕^СֱĹӣһͶ͵ӿױ@͌¹Mø֮tһͶߵױ@ǹMõ٣䌍ĹӲ̫(jng)^ĹM̫
]ʽˮ:I(y)ѭh(hun)sˮ̎O(sh)ӋҎ(gu)˜ʲô
ͺ]ʽsˮ:ˮˮܵنλm/sĹʽλ/syһrgt(ni)Ͳ(ni)ˮweVǰֱߜyԁˮܵă(ni)ֱeS=V/t/S
ͺ]ʽsˮ:ˮܹٵӰ
ĴСÑĶ١˱CّMpD(zhun)ӹ
![ͺ]ʽsˮ](/upload/ay (18).jpg)