文章研究了不包含真空态的类二项式迭加态的光场的振幅N次方压缩特性。
The characteristic of the amplitude Nth power squeezing of binomial like state without vacuum has been investigated.
基于当代认知心理学有关应用题解答的研究成果，笔者选择了样例学习理论和图式理论作为研究依据，就一元二次方程应用题进行了一项教学实验。
This paper is a report of a teaching experiment on word problems on quadratic equations with one unknown based on the theory of schemas a.
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