依据光学原理，前三者的基本关系为：透光率越高、隔热率越低；
According to the optical principle, the relationship between the first three is: the higher the transmittance, the lower the heat insulation rate;
本文介绍了可移动式无膜激波管工作原理和在这种新实验设备上进行光学测量的理论依据和实验结果。
In this paper, a set of experiments have been conducted in a movable diaphragmless shock tube, and some experimental data have been obtained.
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