A single value sets repeated tabs at that interval.
设置一个单一值，它将以此为间隔设置重复的制表符。
2
The ratio of working time to standby unattended time of the tubular electric heating elements is less than 1 when the tubular electric heating elements work atinterval.
所述电热管间隔工作时电热管的工作时间和非工作时间的比值小于1。
3
Testing the main parameters of track circuit atinterval by this method and estimating the safety of track circuit when error is permitted have strong practical meaning.