R-f signal generator
[电] 射频讯号产生器
🧩 词语组成解析
signal
['sɪgnl]
n. 信号，暗号;预兆，征象;动机;导火线;
vt. 向…发信号;用动作（手势）示意;以信号告知;
vi. 发信号;
adj. 显著的，优越的;暗号的，作信号用的;
sign记号，信号+al表名词 → 信号
🗣️ 情景例句
You have a good command of English.
你的英语水平很好。
Many a fine dish has nothing on it.
虚有其表。
But I'm determined to enjoy myself as much as possible, even though I can't see everything.
但是尽管我不可能什么都看，我都决定要玩个痛快！