名词
中文翻译：跨时期图
同义词：
['cross-sectional graph', 'cross-temporal graph']
例句：
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1.The researchers used a cross-periodogram to analyze the data collected over the past decade.
研究人员使用了一个交叉时期图来分析过去十年收集的数据。
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2. The company's financial performance is closely monitored using cross-periodograms.
公司财务状况的密切监控是通过交叉时期图进行的。
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3.The study revealed that the population growth rate was significantly higher during the 19th century compared to the 20th century.
研究发现，与20世纪相比，19世纪的人口增长率显著更高。