berkelium bk
常见例句
- Berkelium (Bk), Dubnium (Db), and Hassium (Hs) were named after Berkeley, CA, Dubna, Russia and the German state of Hessen, respectively, where these man-made elements were created.
锫（Bk）、钍（Db）和钅黑（Hs）分别命名于这些人工元素的诞生地美国加州伯克利的杜伯纳、俄罗斯和德国的黑森州。
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