2022年2月27日
How CDs Work
摘要： https://electronics.howstuffworks.com/cd.htm A CD is a fairly simple piece of plastic, about four one-hundredths (4/100) of an inch (1.2 mm) thick. Mo 阅读全文
posted @ 2022-02-27 16:15 华容道专家 阅读(82) 评论(0) 推荐(0)