发布时间:2025-01-21 21:35:03
你的这个电子管收音机中的6A2和6K4的屏极、6p1连栅极,都没有直流高压,原因是滤波电阻(2k5w)短路、没有连接好。如图:
奥克斯空调安装怎么aux安装服务那么差啊扬州投诉还找不到电话打4008268268一步一步的提问莫名其妙
2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03 2025-01-21 21:35:03高人指导14710 lc504796 h是什么意思啊就是生物学方面的半数致死浓度前面的14710是什么意思
2025-01-21 21:35:03 2025-01-21 21:35:03