帮忙翻译一句PFC方面的英文

英文没学好, 帮忙翻译一下. 老板要求周末交.谢谢了!

The result is a gapless triangular shaped current through inductor L1 (so called critical conduction mode) which is sustained for a turn-on time in the range of 23µs down to 2.3µs.