Radar beacon
[电] 雷达指标
🧩 词语组成解析
radar
['redɑr]
n. 雷达;雷达装置;无线电探测器;
beacon
['bikən]
n. 灯塔，信号浮标;烽火;指路明灯;警标，界标;
vt. 照亮，指引;为…设置信标;用灯指引;
vi. 像灯塔般照耀;
🗣️ 情景例句
you wouldn't need as much money.
不需要花多少钱。
I think you may have something there.
我认为在那方面你可能是有理的。
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，