Because P and S waves travel at different but fairly constant speeds, the interval between their arrivals increases in proportion to the distance from the earthquake focus, or initial rupture point.
由于 P 波和 S 波以不同但相当恒定的速度传播,它们到达的间隔与到震源或初始破裂点的距离成比例地增加。
2
This type of fragmentation allows the DBA to define a set of initial fragments and an interval value.
这个类型的存储残片允许dba定义一系列的初始片段和一个区间值。
3
You can use them to schedule events that should occur at regular intervals after the initial run, with the period specifying the interval.