In this paper, the introduced mapping technology for narrow 3-d impeller of centrifugal compressors has been in further researched and some key points have been discussed.
对引进的离心压缩机窄三元叶轮的测绘技术进行了研究；对技术关键点作了探讨，重点介绍了石膏、石蜡灌模及其处理工艺措施。
In this paper, the introduced mapping technology for narrow 3-d impeller of centrifugal compressors has been in further researched and some key points have been discussed.
对引进的离心压缩机窄三元叶轮的测绘技术进行了研究；对技术关键点作了探讨，重点介绍了石膏、石蜡灌模及其处理工艺措施。
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