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
I can't wait to see her face when she walks in here tonight.
我迫不及待想看到她今晚走进这里时脸上的表情。
Tom's been feeling blue ever since his divorce.
自离婚以来，汤姆一直很忧郁。
She walked slowly into the hall and at once noticed that all the room doors were open,
她慢慢地走进前厅，立即发现所有的房门都敞开着，