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单词
technetium 99
释义
technetium 99
tech·ne·ti·um 99 (
99
Tc),
(
tek-nē'shē-ŭm
),
A radioisotope of technetium that is the decay product of technetium-99m and has a weak beta emission and a physical half-life of 213,000 years.
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更新时间:2025/3/17 16:33:59