number of periods

a simple moving average is calculated by adding the prices over a given number of periods, then dividing the sum by the number of periods.

一个简单的移动平均值的计算方法就是增加了价格的某一特定时期数量，然后除以总结了一些时间。

other types of combination birth control pills allow you to reduce the number of periods you have each year.

其他种类的生育控制组合药片可以减少你每年的（排卵）周期数量。

the sequence of the name spaces depends on the number of periods in the name.

名字空间的序列取决于名字中句点的数量。

number of periods with entry

有厂商进入的时期数

increasing the number of periods, the transmittivity is reduced and the reflective spectrum is flatter near the reflective wavelength.

随着光栅周期数的不断增多，其在反射波长处的透射率不断减小，谱线趋于平坦；

The more distant the cash flows number of periods and the larger the total risk adjustment.

越是后期的现金流,期数就越多,而总的风险调整额就越大.

number of periods with exit

有厂商退出的时期数

increasing the number of periods will make photonic bandgap more obvious.

周期增加会使得光子能隙现象更加明显；

the design of pbg structures and the effect of the size of period, the number of periods, the size of unit etc. are presented.

周期长度、周期个数、单元尺寸等几个方面对阻带特性的影响等，并给出了结论。

number of periods with both exit and entry

同时有厂商进入和退出的时期数

cannot calculate number of periods using the arguments provided.

无法使用提供的参数计算周期数。

a simple visual assessment can be used to determine the appropriate number of periods.

一个简单的视觉评估可用于确定适当数量的时期。