ɵȷݣƴһƵij.εԲ.
3ʣʲô?õλЩ?
4֪ĵsh㳤?(飺=)
ʾѧϰĿ꣺
1ͨиƴϵķʽƵԲʽùʽȷؼԲݻ.
2ѧתѧ˼ͷʵ ѧѧϰP8~10
ҵķ֣Բĵ ΣԷֳȵ ΣȻٰԲЩΣ пƴͽһ .ƽֵķԽֵࣨķżƴԽһ .
ˣԲ=
VʾԲSʾԲĵhʾԲĸߣԲʽĸʾΪ
ʾڼУеIJֱӸԲĵǸ뾶ֱӦ Բ.㹫ʽǣV= . ʵսϰ
֪һӵĵ뾶Ϊ0.4ףΪ5.Ƕ ܽӦע ֪ʶ2Բݻͼ㷽
һ룬һۣ˼һӣȻ뷨ҷ 1һԲɵԲݻ.
磺ԲεˮˮͰװˮˮˮͰݻ.Բݻļ㷽 ļ㷽ͬԲݻ= . 2һԲݻһ
ġѧѧϰչʾ
塢С.
ԲƵ?Բ֪Щ
13 / 22
.ʣܶ?ָһͬѧݣѧϰ.嶩ʽʲô?ӦעЩ?λ)
ѧһԡ
СԲ
֪.ֻ֪֪뾶rͨʲô;Բ?֪d?֪̬Ⱥͼֵۣ?֪rd̬ȺͼֵۣҪ.
ϰϰϰ ߡС
ڿѧϰʲô?Բ㣬ʽõ?ָڿΣͨתԲƴתɳ壬(ڿ°飺ԲЩ)óԲ㹫ʽV=Sh.
ˡҵ
κ˼
Բϰ
ѧݣ꼶²һԪP10
14 / 22
ѧĿ꣺
֪ʶһԲ㹫ʽӦõʵʽ. 뷽 ѧĿռ˼άѧʶת˼. ̬ȺͼֵۣԲʽƵ̣ռ㹫ʽùʽԲ.
ѧص㣺Բ㹫ʽ. ѧѵ Բ㹫ʽƵ. ѧ ̽ ѧ̣ һϰ
ʵӦ
˵˼·
˵˵Ľ˼·
עĵطλͳһ
15 / 22
˵˵ĸΪʲô
2ʲô
ֱ˵˵ļ㷽. ҵ
κ˼:
Բ
ѧݣ꼶²һԪP11 ѧĿ꣺
֪ʶʹѧԲļ㹫ʽ 뷽ùʽԲ
̬ȺͼֵۣѧĿռ˼άѧʶת˼.
ѧص㣺Բ㹫ʽƵ̣ ѧѵ㣺ȷԲ㹫ʽ
16 / 22