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2019ʦƸ˵θ壺

2019-09-16 11:10:23| й

ʦԸϰƵڴ˵θ壺УѧʶеĶ壬ǵֵ(30°45°60°)ֵֵͨѧϰǺĸһνϷǿѧ˼롣ϢעʦƸƵ


2019ʦƸ˵θ壺

𾴵ĸλٴҺãǽXſ˵εĿǡС

¿αָѧγҪȫѧӦѧԷչҪʹ˶ܻõѧͬѧ϶ܵõͬķչҽ᳹һӽ̲ķѧѧ̵ȼչҵ˵Ρ

һ˵̲

ڿѡ̰ѧ꼶ϲµ2ڡСҪеĸǵֵѧڱڿ֮ǰѧϰҡҵĸΪڿε춨˻ͬʱڿεѧϰҲΪ½ڿѧϰ̵ֱ档

˵ѧ

̸̸ҶԵѧѧʵ˽⡣ѧѾһĻ֪ʶ˼άݣһѧϰѧϰȱڴˣڿעѧ˼ʹѧӸԡһѧ෢ԣѧȷ

˵ѧĿ

϶Խ̲ĵķԼѧİգƶάѧĿ꣺

(һ)֪ʶ뼼

ʶеĶ壬ǵֵ(30°45°60°)ֵ

()뷽

ֵͨѧϰǺĸһνϷǿѧ˼롣

()̬ȼֵ

ѧϰѧȤǿѧϰѧģѧϽԡ

ġ˵ѧѵ

ΪһںõѧΣӽѧ˵һҪͻص㡢ͻѵ㡣ѧصȷұڿεݿ϶ܲɷֵġôڿݿȷڿεĽѧصǣжԼǵֵѧѵǣжԼе̡̽

塢˵̷ѧ

ִѧΪѧУѧΪ壬ʦΪʦѧϰ֯ߡߡߣѧһлǿѧԡΪ㡣ϱڿεصѧڿҽýڷϰС۷Ƚѧ

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