柯林斯英汉双解大词典
pipi /ˈpɪpiː/
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1.
N any of various shellfishes, esp Plebidonax deltoides of Australia or Mesodesma novae-zelandiae of New Zealand 贝类动物(特指三角斧蛤)
双语例句原声例句权威例句
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Here we use [-pi: PI] to get one sinusoid cycle.
这里我们使用[- pi： pi]得到一个正弦曲线周期。
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Pi So as we've written it, we've got Pi of Ei exp is proportional to e to the minus Ei over kT.
就像我们写的一样，我们得到,正比于。
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Since exp(i*pi)=-1, CPhase(pi,x) will flip the sign of the |1> component.
由于 exp(i*pi)=-1， CPhase(pi,x) 会对 |1> 分量的符号取反。
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So what we see is that those six pi electrons are actually going to be de-localized around all six of those atoms.
我们看到,六个π电子会,巡游在所有六个原子周围。
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That's -Pi times a vector.
就等于用 -π 乘以那个矢量
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So, what we end up having is three of these pi -- 2 p y 2 p y bonds, we can have one between these two carbons here.
我们剩下的有三个π键-,2py2py键，在这两个碳原子之间会有一个。
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