有人解答一下吗 thx!

30以下.这篇文献里有：Academy of Management Journal
2011, Vol. 54, No. 5, 1069–1080.
http://dx.doi.org/10.5465/amj.2007.0767
BEHIND ACQUISITIONS OF ALLIANCE PARTNERS:
EXPLORATORY LEARNING AND NETWORK EMBEDDEDNESS
：
We also used the “coldiag” procedure in Stata to conduct the Belsley, Kuh, and Welsch (1980) multicollinearity diagnostic test, which shows that the condition number for our complete model is 7.62, well below the threshold of 30.

同求这个命令的结果要怎么看呢？

这个命令计算的原理是什么知道吗

正好要用到 谢谢！