User requirements and in accordance with the surface coating on the screw has been worn carbide and restoration of the old screw.
并可根据用户要求对螺杆表面喷涂硬质合金和对已磨损的旧螺杆修复工作。
Instead, my "screw you" here is to my old lifestyle, to my old life, to a life without meaning.
反之,我说的“去他地吧”是对我之前的生活方式,是对我之前毫无意义的生活说的。
This paper introduced the disadvantages of the old pistol air compressor and effect on saving energy by promoting new type double screw compressor.
介绍了老式的活塞型空压机的缺陷,推广新型双螺杆空压机的节能经济效果。
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