at the sectional level的意思|示意

The first type of cross sectional model involves a situation in which the financial performance variable is available at the customer level.

第一种相关性模型涉及的一种情况是每个客户方面的财务业绩变量是可以获得的。

Although the pollen morphology did not show its importance to the taxonomy at sectional level of the genus Begonia, it showed some value to some specific treatment.

尽管花粉形态在分组上的意义不明显，但对于区分种、鉴定新种有一定的参考价值。