The line depicts the diameter of the circle and the two small circles represent two planets at their greatest distance from each other.
这根线描述了圆的直径，以及两个小圆代表了两个行星之间的最大距离。
This paper introduced the technology of pigging, diameter measuring & pressure testing for Guangdong LNG trunk-line.
本文介绍了广东液化天然气输气干线工程应用的清管测径试压技术。
The average transverse area, total fiber number and fiber diameter of posterior lateral line nerve were examined quantitatively by morphologic analysis sys.
运用形态分析系统软件对后侧线神经的横截面积、纤维数量和纤维直径进行了定量的统计分析。
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