Roentgen-unit
[医] X线单位
🧩 词语组成解析
n. 伦琴射线, X射线\\n[化] 伦琴
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
Thank you. The same to you.
谢谢。圣诞快乐！
ON. It gets bright.
合上开关，它就会变亮。
Our knowledge of the oceans a hundred years ago was confined to the two-dimensional shape of the sea surface and the hazards of navigation presented by the irregularities in depth of the shallow water close to the land.
100年前，我们只知道海洋是二维平面形的，以及靠近陆地浅水区的深浅不一能给航行带来危险。