Seltrap
半导体二极管变阻器
🗣️ 情景例句
A real inspiration for me.
他给我很大的启发。
Whatever is worth doing at all is worth doing well.
凡是值得做的事，就值得做好。
It is the natural frequency of emission of the hydrogen atoms in space and was discovered by us in 1951;
这个频率是空间氢原子释放的自然频率，是在1951年被人类发现的。