Riometer
n. [物]宇宙噪声测量器, 相对电离层吸收仪(用以测量电离层对电磁波的吸收作用)
🗣️ 情景例句
There's much more to be done.
要做的事太多了。
He likes playing the guitar.
他喜欢弹吉他。
Look at the ice! Be careful! It's thin.
瞧那冰！当心！冰很薄。