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һСʱ ..

60 һԼ=365.25 һ=365.25x24=365x24+0.25x24=6+??? һ6Сʱ һ54 1Сʱ=602.25 Ȼ룬ü2.25

1Сʱ=60=60*60=3600 ס60λͿ

ȣһͨѧܹϵһСʱѾ˲ˡ ܶٹǿһ¡ѧ5000һ20ӣһСʱϿ15ʵҪС15Ӧ10--15֮ɡ

һСʱ60ӡ 1Сʱ Сʱ(hour)һʱ䵥λСʱʱĹʵλƻλʱĹʵλƻλ룩ʵλƻλЭĸʱ䵥λ⣬һСʱһ3600룬60ӣ1/24졣 ...

3600

20ӵ֮һСʱ1Сʱʮ1.33333Сʱ

ƽٶ5-7ǧ/Сʱ ϸٶȣ ǧ˭˵Լ˶֮?㣬ңǶ΢ǡ̩ɽ̩ɽʯʯ? ʵǧΨһ˶ľǡ˶ڴӿɽ...

⣬һ 1涴ԭ 2һСʱ 3ʱʲô »شԼ⣬һȷϣܰ 1涴ԭ ֻܴӿռǶȽ ռǶάģΪռ11ά뵽άʱӾܲ...

ٶ һ 9-10100.. һСʱ40000. ˲1Сʱڰ׵ٶȥ.. Ծܶ.. ڵ1000Ҫ 330.Լ210. Ǿ 4/ÿ һСʱ14400...

an hour ȿ꣺ hour[auə] [a]ԪڣҪaan ȻĸԪĸǸǶжϲڴʵѡ Understand ~ǵò~_

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