提出了用单色激光器制作真彩色动感全息图的方法。
A method of making true color moving holograms with one-wavelength laser is proposed in the paper.
文中阐述了制动感载阀的工作原理，介绍了制动感载阀维护和调整方法以及使用过程中的注意事项。
The paper expounded the working principle, maintenance and adjusted method of ALB valve as well as items worthy to note in the process of use.
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