Directional beam
[电] 定向射束
🧩 词语组成解析
directional
[[di'rekʃənəl]]
a. 方向的
beam
[bim]
n. 梁，栋梁;束;光线;（电波的）波束;
vi. 发出光与热;面露喜色;
vt. 播送;以梁支撑;用…照射;流露;
vt.& vi. 笑容满面，眉开眼笑;发射电波，播送;放出束状的光（或热）;
🗣️ 情景例句
I haven't seen you for a long time.
很久没见了。
Pouring oil on the fire is no way to quench it.
加油不是灭火法。
They were glad of the examination being over.
他们为考试结束了而高兴。