The sealing property problem for the stirring shaft of high-speed pressured reaction axe with large length to diameter ratio is always a difficult problem to study for designers and users.
高速大长径比压力反应釜搅拌轴密封性能问题一直是设计者与使用者研究的难题。
The question about the seals of high speed churn shaft with large ratio of length to diameter is one of the difficult problems.
高速大长径比搅拌轴密封可靠性问题，一直是从事密封工作者探索的问题之一。
When pile length and the ratio about pile length to pile diameter is less than 25, side resistance is aggrandized by increasing of the load, and gently added at high stress level.
对于桩长和桩的长径比均小于25的嵌岩桩，侧阻力随桩顶荷载的增加而增大，且在高的应力水平下平缓增长，当达到最大荷载时达到试验最大值，其嵌岩部分侧阻力从上至下依次发挥。
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