The results show that the charge storage stability of film electret increases remarkably in high humidity surroundings after chemical surface modification.
实验结果表明，经过化学表面修正后，驻极体薄膜在高湿环境中的电荷储存稳定性显著提高；
Coating by physical vapour deposition (PVD), coating by chemical vapour deposition (CVD) and surface layer modification by ion implantation, all three are being tested and are partly in use.
涂层的化学气相沉积(CVD)和表面层改性的物理气相沉积(PVD)涂层的离子注入，所有三个正在受到考验，并部分使用。
With the perlite tailings as raw material, the functional mineral fillers with excellent properties, are prepared through ultrafine crashing and surface chemical modification.
以珍珠岩尾矿为原料，通过超细粉碎、表面化学改性等工艺进行深加工，制备出性能优良的功能性矿物填料。
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