In the hot summer, people in many areas are experiencing the test of high temperatures, but in the Zheduo Mountain in Sichuan, a rare scene of "snow in July" was staged. At 7:00 a.m. on July 13, 2011,
[align=left][color=#333333][color=#191919]Operational amplifiers and comparators are similar in appearance and drawing symbols, so what are the differences between them and how to distinguish them in
I started a server locally and tried to write a program to run on the PDA. I tested it locally and used TCP socket to connect to the local server (127.0.0.1). I used the Pocket PC 2003 SE emulator but
1. The explosion-proof valve opens: Phenomenon: the internal pressure increases and the internal temperature rises. Reasons: during use, overvoltage is applied, the ripple current is too large, revers