4 736
订阅者
-224 小时
-57 天
-1930 天
帖子存档
Torsional rigidity of a solid circular shaft of diameter d is proportional to :
The rankine constant for a mild steel column with both ends hinged is
Which type of semiconductor device act as a voltage controlled switch ?
What is the purpose of a rectifier in a power supply circuit ?
现已上线!2025 年 Telegram 研究 — 年度关键洞察 
