Here, the structure and technical parameters of air compressor are briefed and the fabrication and advantages of skeleton oil seal are detailed.

文章简介空压机的结构和技术参数，详细介绍了骨架油封的制作和优点。

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A developing trend for the high-speed centrifugal compressor is predicted. The non-oil seal will gradually take the place of the wet seal and it will obtain zero leakage of the seal unit.

最后，对高速离心压缩机发展趋势做出了展望，提出无油密封将逐渐取代湿式密封，真正达到密封装置的介质的“零泄漏”。

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