The continuous character of this model justifies the expressions' cyclical fluctuations' and 'business cycle' although the movements have neither constant duration nor constant length.
该模型的连续性证明的表达式“周期性波动”和“商业周期”，虽然动作既不恒定的持续时间也不恒定的长度。
Figure 6 demonstrates what happens when the arrival rate is increased while the duration is constant.
图6演示的是到达率上升而持续时间不变的情况。
DurationLabel: Identifies the duration that is associated with the Constant value specified if the partitioning key column has been assigned a date, time, or time stamp data type.
DurationLabel：如果分区键列的数据类型是日期、时间或时间戳，这个参数指定与Constan t值相关的时间单位。
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