This makes them incredibly strong and incredibly light, and they've already been manufactured in strands with a length-to-diameterratio of 132 million to one.
这使得它们非常牢固但又令人难以置信的轻，并且它们已经被用来生产出长度直径比为1.32亿的绳链。
2
The sealing property problem for the stirring shaft of high-speed pressured reaction axe with large lengthtodiameterratio 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。
3
The question about the seals of high speed churn shaft with large ratio of lengthtodiameter is one of the difficult problems.