1
alternating current 同 direct current 有咩分別?
點解main electricity 會用a.c?
如果用d.c 會點?
2
甚麼是load,係咪即係battery?
收錄日期: 2021-04-12 21:51:34
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061117000051KK02482