The coating possesses high wear and cold-welding resistance and good electric conductivity both in atmosphere and in ultrahighvacuum.
该镀层在大气或超高真空条件下具有良好的耐磨性、防冷焊性和导电性;
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The changes of surface composition of bisphenol A polysulphonefilms induced by X ray in ultrahighvacuum have been studied using X ray photoelectron spectroscopy (XPS).
In this paper, the principle and construction of magnetic coupling transmisson(MCT) for ultrahighvacuum are given. The difference between MCT for ultrahighvacuum and for ordinary case is mentioned.