Plifier
电子束半导体线性低通放大管
🗣️ 情景例句
He had insufficient sleep.
他睡眼不足。
A wilful man will have his way.
有志者是竟成。
By 1820 the population of New York had grown to about 125,000, making it the largest city in the USA.
到1820年，纽约市的人口增长到12。5万人左右，使它成了当时美国最大的城市。