关于the number of+数字的问题

1. A is negatively correlated with the number of 10 to 20 F-T cycles.

2. A is negatively correlated with the 10 to 20 number of F-T cycles.

A与10 ~ 20个F-T循环数呈负有关。

请问上的1和2那个表述好一些呢，第二种表述应该没错吧？

如此表达好像更规范：

1. A is negatively correlated with the numbers from 10 to 20 F-T cycles.

2. A is negatively correlated with the 10-to-20 number of F-T cycles.