Risley's prism
[医] 里斯利氏棱镜
🧩 词语组成解析
prism
['prɪzəm]
n. 棱镜，棱晶;[数]棱柱体，角柱（体），[物]（结晶）柱;[物]分光光谱，光谱的七色，折光物体;
🗣️ 情景例句
I would like to send this by registered mail, please.
我想把这封信挂号寄出。
Do you want to remit the money by air mail or by cable, sir?
您想要航空信还是电汇，先生？
That costs quite bit more.
那要多花好多钱。