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单词
niobic acid
释义
niobic acid
noun
:
a gelatinous hydrated form Nb
2
O
5
.
n
H
2
0 of niobium pentoxide that reacts with alkalies to yield salts (as sodium niobate NaNb0
3
)
— called also
columbic acid
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更新时间:2025/7/29 21:39:41