Actinophor
[醫(yī)] 釷鈰混合造影劑
??? 情景例句
Merry Christmas, Carl and David!
卡爾，大衛(wèi)，圣誕快樂(lè)！
How far?
多遠(yuǎn)？
When the instrument is situated at more than 700 miles from the earthquake centre,
如果把這種儀器安裝在距震源700多英里遠(yuǎn)的地方，