Ra 1535 forms a transparent, thin, middle-hard and non-sticky film. It has good penetrative, adhesive and polishing properties.
RA 1535成膜薄、透明、中硬、不粘，其具有很好的渗透和粘着性能、优良的抛光性能。
These seals consist of two flat faces, one extremely hard, the other softer, in direct contact except for a thin film of the oil being pumped.
这些密封有两个平面，一个很硬、另一个较软，两平面间除一层被泵送的油外，直接接触。
Makes a survey about the recent develpment of new deposition techniques for hard thin film coatings.
本文介绍了新型硬质涂层和硬质涂层沉积技术中电弧离子镀和磁控溅射镀技术的新进展。
Makes a survey about the recent develpment of new deposition techniques for hard thin film coatings.
本文介绍了新型硬质涂层和硬质涂层沉积技术中电弧离子镀和磁控溅射镀技术的新进展。
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