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单词
platiniridium
释义
plat·in·iridium
\|plat
ə
n+\
noun
Etymology:
platin- + iridium
:
a mineral consisting of a natural alloy of iridium with platinum and other related metals occurring usually in silver-white grains (hardness 6-7, sp. gr., 22.6-22.8)
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更新时间:2025/12/3 5:04:54