Phanotron
[电] 热阴极含气整流管
🗣️ 情景例句
I estimate his age to be about 30.
我估计他的年龄大约30岁。
The father buys,the son bigs,the grandchild sells,and his son thigs.
父买、子修建、孙儿卖，重孙街上当乞丐。
That's an English car!
那才是一辆英国产的小汽车！