原文:Without this default, it is possible for multiple batteries to
concurrently demand more charging power than is available potentially starving
the system of power。
想请问，more charging power than后面为什么可以直接接is?它的主词到哪里去了?
问题二:S(消失的主词)+be+C(补语)+potentially....(为什么可以加后面这一个没有主词
跟动词的句子?)

你可以去询问English Speakers

这里的 than 是准关系代名词，类似的还有 as 和 but后面可想成前面这的个状况会 potentially starving thesystem of power, 有点像分词构句，或许写成 than isavailable, which potentially starves the system of power可较好理解 (个人看法)