The article educed that the series of hard wheat futures and spot prices show their first-order differencestationary, I (1) process, by the unit root test.
通过单位根检验，确定硬麦期货与现货价格序列具有一阶差分平稳性即i(1)过程。
2
It is only when they get off the plane and compare their watches with someone who has been stationary relative to them that they notice a difference.
只有当他们离开飞机与某个原来静止的人比较一下手表的时候他们才发现不同之处。
3
The results show that the entropies of boson field and the fermion field of six dimensional non-stationary black hale have similar formulae only with a coefficient difference.