Kathetron
一种有外栅极的三极管, 辉光放电管
🗣️ 情景例句
to work out a program
想研拟一项计划
Pat's results are in agreement with the textbook experiment.
柏德获得的实验结果和课本一致。
Mum, I don't feel very well.
妈，我感觉不舒服。