Sagnac rays
[醫] 塞納克氏射線(γ線由金屬面反射形成的次生β線)
?? 詞語組成解析
n. 射線；[俚]日光浴；光線（ray的復數）
??? 情景例句
Aren't you a little scared?
難道你不會感到有點緊張嗎？
It's not four o'clock.
還沒到四點呢。
Is that true? said Lucy. She was surprised. Is it a real king's hat?
“是真的嗎？”露西問。她感到驚奇。“那真的是國王的帽子？”