今天，我要讨论一些这个职能理论中差的观点。

Today, I would like to discuss some of the weak points of the theory of functionalism.

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通过对波导中差频耦合方程的简化，推导出了转换效率的解析表达式。

By simplifying the coupled equations of DFG in waveguides, we provide analytical expressions of the conversion efficiency.

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随机周期长度偏差对准相位匹配波导中差频效率的影响要比随机占空比偏差的影响来得大，这与单块周期极化晶体中的情况类似。

With the same magnitude, random period error casts much larger effect on the conversion efficiency than random duty cycle error, which is similar with the case in bulk crystals.

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In fact, he claims, he was so far from such debauchery that he had devoted his entire early life to the ideal of virginity.

他声称，事实上他离放荡还差远了,因为他年轻时完全沉浸于贞操理想中。

耶鲁公开课 - 弥尔顿课程节选

In the real world, no one's going to measure it instantaneously, but we can make the difference as small as we like.

在现实生活中,没人能一瞬间测出来,但我们可以使差值越来越小

耶鲁公开课 - 基础物理课程节选

So, if we want to go from that stable state to that less stable state, we need to put in a certain amount of energy to our system, that difference between the free electron and the electron bound to the metal.

所以，如果我们想使电子,从稳态到达不够稳定的状态，我们需要引入一定数量的,能量到系统中，即自由电子和束缚于金属的,电子的能量差。

麻省理工公开课 - 化学原理课程节选