for the prior in-sequence

我正在翻译一篇“喷墨笔”专利案，遇到这么一句话，不知道该如何翻译，希望知者帮忙~
the select line for a particular fire group can be connected to the precharge line for the prior in-sequence in fire group to...
还有
the high time counted by SelectTimer1,翻译成由SelectTimer1计数的？时间呢？

被難到了！不結合全文似乎......