赏心悦目
发表于 2025-3-25 06:48:23
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高度
发表于 2025-3-25 09:41:13
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战役
发表于 2025-3-25 15:32:35
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chalice
发表于 2025-3-25 17:44:28
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讨好美人
发表于 2025-3-25 22:00:30
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colony
发表于 2025-3-26 03:47:36
-Adic Model for Population Growthndent existence. Isotopes of At occur naturally in both the 4n + 2 (.U) and the 4n + 3 (.U) decay chains. .At, a member of the artificial 4n + 1 (.Np) series, has also been detected in natural materials.
OVERT
发表于 2025-3-26 07:21:48
Is the Lung an Optimal Gas Exchanger? This reaction yields At isotopes with half-lives measured in hours, whereas the longest-lived At isotope in nature is 0.9-min .At. Not surprisingly, .At is also the only naturally occurring At isotope ever isolated by chemical means.
BORE
发表于 2025-3-26 11:49:37
Book 1985Latest editioneighable" amounts of the element. This implies that all available data on physics and chemistry of this element are 12 16 based on experiments on the tracer scale with 10- to 10- g - and this will also not change in future because no longer-Lived isotopes as yet known are to be expected. Due to the
bizarre
发表于 2025-3-26 16:09:06
with . . weighable" amounts of the element. This implies that all available data on physics and chemistry of this element are 12 16 based on experiments on the tracer scale with 10- to 10- g - and this will also not change in future because no longer-Lived isotopes as yet known are to be expected. D
AMBI
发表于 2025-3-26 17:16:30
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