Since 1987, researchers had been interested in the third order nonlinear optical polymer materials.

自1987年以来，三阶非线性光学聚合物（TONLOP）材料越来越引起研究者们的浓厚兴趣。

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Since 1987, researchers had been interested in the third order nonlinear optical polymer materials.

自1987年以来，三阶非线性光学聚合物（TONLOP）材料越来越引起研究者们的浓厚兴趣。

youdao