Pentode
n. 五极管, 电子五极管\\n[电] 五极管
🗣️ 情景例句
Our toy company makes the most wonderful toys for kids.
我们玩具公司为小孩子们制造最棒的玩具。
If you trust before you try,you may repent before you die.
不经考验就依赖，不到瞑目便的悔。
where chance discoveries play a much larger part than they do in physical and mechancal industries.
同物理和机械工业相比，化学工业中偶然发现的机会要多得多。