Cross-sectional epidemiological study是什么

cross sectional cross-sectional cross-sectional是什么意思 cross-sectional design是什么意思 cross-sectional area, cross-sectional是什么意思 什么是Cross-sectional cross-sectional area是什么意思 什么是Cross-sectional Cross-Sectional dependence什么意思? Cross-sectional epidemiological study是什么 cross-sectional communication什么意思? cross-sectional stock是神马? sectional 经济学学术语言cross-sectional snapshot 中文意思 英语翻译The strategy is based on firms in the extreme high and low deciles of accruals’ cross sectional distribution. sectional view是什么意思 X-sectional area