有负号的

Baillie and Bollerslev (2000) also show that the magnitude and sigh of the estimated slop coefficient in the forward premium regression appears to be slowly time-varying.

另外，Baillie and Bollerslev (2000)证实远期溢酬回归式的估计参数斜率大小与正负号有随时间缓慢变化的现象。

According to what graph 2 shows, conductor is still, uniform static magnetic field moves to the left at the speed of , referring to in graph 1 can get , substitute it into Lorentz magnetic force , it is , the negative sign here is not added randomly, it is because the moving direction of magnetic field is opposite to the moving direction of conductor.

如图2所示，导体是静止的，均匀的静态磁场以速度向左边运动，对照图1的，就得，带入洛伦兹磁力中，有，这里的负号不是随意加进去的，而是由于磁场的运动方向与导体的运动方向相反之缘故。

With the implementation of Newton's Interpolation Formula, we successfully estimate the unobserved bond credit spread with positive or negative credit ratings, such as: twA+, twA-, twBB+.

配合牛顿内插法公式，将债信评等等级有正、负号之公司债，如twA+、twA-、twBB+…等，顺利微调出合理的信用利差，成功地解决了正、负号信用利差资料为不可观察的问题。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。