The PDP plasma screen protection pastes the membrane.
PDP等离子屏幕保护贴膜。
In this paper, liquid crystal phase grating large screen protection system is introduced, and its fundamental diffraction characteristics are discussed.
本文介绍了一种液晶相位光栅大屏幕投影系统，讨论了液晶相位光栅的基本衍射特性。
Mercury vapour lamp with wire screen protection.
带保护的汞蒸气灯 ；
Screen protection against radiation overdose of radioactive level gauge in chemical plant and the relevant national standards are introduced.
针对化工生产装置常用的放射性液位计和国家标准，介绍射线剂量超标的屏蔽防护方法。
Screen protection against radiation overdose of radioactive level gauge in chemical plant and the relevant national standards are introduced.
针对化工生产装置常用的放射性液位计和国家标准，介绍射线剂量超标的屏蔽防护方法。
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