横截面数据：成分数据只测量一次。这展示你的变量在一个时间点的快照（如：市场调查）。

Cross-Sectional: The sample of elements is measured only once. This shows you a snapshot of variables at a point in time (e. g. , market survey).

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本文介绍了雷达散射截面积(RCS)测量系统的一种数据采集设计方案。

This paper introduces a method of data acquisition applied in the RCS testing system.

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将PDPA测得的空间点数据分别沿扫描径向和所在测量截面积分，得到液滴的线平均和面平均直径。 PDPA的线积分数据比马尔文仪测得的线积分值要大；

The PDPA measured point data were integrated into the line averaged drop sizes over radial traverses and the cross section averaged sizes over the whole measured sections.

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