advanced placement是什么意思

用法例句

This paper introduces the skipping cascade starting of 42?V auto electrical system and puts forward a new kind of skipping cascade starting mode: skipping cascade starting by series connecting a deeply discharged 36?V storage battery and a partly discharged 12?V one.

简要介绍 42V汽车电气系统跳级起动 ;提出了一种新的跳级起动模式 :将深度放电的 36V蓄电池与部分放电的 1 2V蓄电池相串联来完成跳级起动 ;经过分析并通过试验验证了该模式的可行性。