单词
technetium
读音
tekˈniːʃiəm
美式
英式
词根
无
释义
n. [化学] 锝(放射性元素,位于元素周期表第43位)
例句
They named it Technetium to emphasize that it was artificially created with technology.
他们把它命名为 Technetium,是为了强调它是用人工和技术相结合而创造的。
As Masurium, it was the first element discovered that occurs in nature only from spontaneous fission, and as Technetium, it was the first element discovered in a laboratory.
作为 Masurium,它是在自然界中发现的第一种只能通过自然裂变产生的元素;作为锝,它是在实验室中发现的第一种元素。
Technetium-99 is obtained from Molybdenum-99.
锝- 99从钼- 99中获取。
They named it Technetium to emphasize that it was artificially created with technology.
他们把它命名为 Technetium,是为了强调它是用人工和技术相结合而创造的。
As Masurium, it was the first element discovered that occurs in nature only from spontaneous fission, and as Technetium, it was the first element discovered in a laboratory.
作为 Masurium,它是在自然界中发现的第一种只能通过自然裂变产生的元素;作为锝,它是在实验室中发现的第一种元素。
Technetium-99 is obtained from Molybdenum-99.
锝- 99从钼- 99中获取。
强化记忆
无
看视频学发音
scandium, germanium, rhenium.The element he called eka-manganese is now called technetium.Technetium is so rare it couldn't be isolated until it was synthesized in a cyclotron in 1937,
The element he called eka-manganese is now called technetium.Technetium is so rare it couldn't be isolated until it was synthesized in a cyclotron in 1937,almost 70 years after Dmitri predicted its existence,
所属分类
其他
所在词典