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一、前言在生产和科研部门经常遇到转轴的密封问题。由于密封装置所处的条件不同,目前已有十几种类型的密封。这些类型的密封基本上可适应当前的科研、生产的需要。但是由于科学
I. Preface In the production and scientific research departments often encounter shaft sealing problem. Due to the different conditions of the sealing device, there are more than a dozen types of seals. These types of seals basically meet the needs of current research and manufacturing. But because of science