Adopted antistatic processing of polyester film is made as base material, it has prevent dirt and impurities adsorption and prevent electrostatic damage function of surface protective materials.

采用防静电处理的聚酯薄膜作为基材，具有防止灰尘和杂质吸附以及防止静电损伤功能的表面保护材料。

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The magneto-optic head flies much farther from the disk surface than a magnetic disk head, and the magnetic material is covered with a protective layer of plastic or glass;

光电磁头距离盘面的距离比磁头远，并且磁介质上覆盖有塑料或玻璃的保护层；

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Then using introduced trees scotch pine, s young trees as experiment material, research different protective effect to ground surface with uniformity model, stochastic model and banding collocate;

其次利用当地引入树种樟子松幼苗为试验材料，研究了随机式、均匀式、行带式三种配置格局对地表的不同防护作用；

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