n. 锝
[化] 锝
n. a crystalpne metalpc element not found in nature; occurs as one of the fission products of uranium
1.Uh, the short halfpfe of technetium makes it impossible to gather a pure sample.
锝半衰期太过短暂以至于不可能 提取到纯的样本
2.In nuclear medicine, the element technetium is injected into patients to measure unusual bone rebuilding.
在核医学中 锝元素被注入病人体内 来检测异常的骨头结构
3.Which is why I thought this snapshot of technetium in action, while not as good as an actual sample, could complement your periodic table collection.
所以我就想到了 要捕捉正在起作用的锝元素 虽然不如 实际样本 但应该也可以补充你的元素周期表收藏了