Because of the characteristic theory of the Photonic Crystals, People are interested in the theoretical analyse and laboratorial research of Photonic Crystals.
由于其独具特色的传光机理，人们对光子晶体的理论分析和实验研究产生了极大的兴趣。
We design the laboratorial device of vacuum couch roll and base on the experimental research, we put forward some solution to reduce aerodynamical noise of vacuum couch roll.
本文设计了真空伏辊实验模拟装置，并在其基础上通过实验研究，提出降低真空伏辊空气动力性噪声的方法。
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