Triac
n. 三端双向可控硅开关元件\\n[计] 三端可控硅器件
🗣️ 情景例句
The course I took was above me.
我上的这门课太难了。
A good name is sooner lost than won.
美誉难得而易失。
Clusters of tin insects called aphids were to be found on the underside of the leaves.
结果在树叶背面找到成串的叫作蚜虫小虫子。