Roentgenometer
n. X光测定器
🔁 扩展释义
【医】 X线量测定器, X线量计
🏥 医学释义
X 射线量测定器，伦琴计
🗣️ 情景例句
Remember to lock your door and windows when you leave the house.
出门前记得锁好门窗。
That's not the point.
这不是重点。
It is thought that they arrived more than 30,000 years ago by crossing a land bridge from Asia to America.
他们被认为是在3万多年以前从亚洲跨越一座陆桥来到美洲的。