名词
中文翻译:Unknown
同义词:
['period', 'era', 'phase', 'stage', 'cycle', 'periodical', 'cyclical', 'periodic', 'cyclic']
例句:
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3.
化学
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1.The development of the industry has undergone several periods.
这个行业的发展经历了几个时期。
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2. The discovery of this new material is a significant milestone in our understanding of the periodic table.
这种新材料的发现是我们理解元素周期表的一个重大里程碑。
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3. The chemical reaction follows a predictable pattern, which is characteristic of a cyclic process.
化学反应遵循可预测的模式,这是循环过程的典型特征。