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
and I did both with Robbie.
有Robbie时我也这样做的。
You're very cheerful today.
你今天很快活。
for she had sixteen watertight compartments.
因为船由16个密封舱组成，