名词
中文翻译：Unknown
同义词：
['protogram', 'protonogram']
例句：
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1. The protonogram of the chemical reaction is a crucial part of the study.
化学反应的质谱图是研究的重要组成部分。
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2. The protonogram shows the mass-to-charge ratios of the atoms involved in the reaction.
质谱图显示了反应中涉及原子的质量与电荷比。
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3. The protonogram was used to identify the isotopes present in the sample.
质谱图被用来鉴定样本中的同位素。