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本文首次提出了一种测量液体三阶极化率的实验方法．它克服了以往测量方法中实验装置复杂的缺点，消除了空气和容器的三次谐波信号对测量结果的影响，从而排除了实验中的系统误差．在实验上对推拉到偶氛有机材料的三阶极化率X（3）进行了测量．
This paper presents for the first time an experimental method for measuring the third-order polarizability of liquids. It overcomes the shortcomings of the complex experimental devices in the past measurement methods and eliminates the influence of the third harmonic signal of the air and the container on the measurement results, thereby eliminating systematic errors in experiments. The third-order polarizability X (3) of an organic material that has been pushed and pulled to even atmosphere has been experimentally measured.