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单词
franckeite
释义
franck·e·ite
\ˈfräŋkəˌīt\
noun
(
-s
)
Etymology:
German
franckeït,
from Carl and Ernest
Francke,
19th century German mining engineers + German
-it
-ite
:
a mineral consisting of a dark gray or black massive lead antimony tin sulfide (sp. gr. 5.55)
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更新时间:2025/10/6 23:31:12