The Maker Movement is rediscovering learning by doing, which is Dewey' s phrase from 100 years ago.
创客运动正在重新发掘“干中学”,这是杜威在100年前的名言。
Perhaps the most important part of working with lighting is knowing where the light(s) is coming from.
应该说利用光照时了解光源在那里是最为重要的基本问题。
Well, here we get, we find that delta H is dH Delta S is negative 198 joules per Kelvin.
我们发现自由焓的变化,为负92千焦,negative,92,kiloJoules。,熵增dS是负198焦耳每开尔文。
The Greater New Orleans Community Data Center says the city's population is about seventy-seven percent of what it was before Katrina.
VOA: special.2010.01.22
She's stuck to a -- this is remarkable: she's stuck to a "marble venomed seat smeared with gums of glutinous heat."
这个值得注意,她坚持坐在,涂满胶状树胶的邪恶石头凳子上“
So you can see that this is non-bonding, this is even worse than non-bonding, it's anti-bonding, because we're actually getting rid of electron density between the two nuclei.
所以你可以看到这是不成键的,它甚至比不成键还糟糕,它是反键,因为我们实际上是去掉了,两个原子核之间的电子。
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