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对交点 [duì jiāo diǎn]
[数] antinode
- 帕卜定理：在两条直线上各取三点，并作适当的连线，则三对直线的交点会在同一直线上。
Pappus Theorem : If the vertices of a hexagon lie alternately on two lines, then the three intersections of the pairs of opposite sides are collinear. - 鉴于该对交点不是天文系统中真正的星体，本质上它们的意义和适当运用被视为非常神秘。
Since the nodes are not real points (lights) in the usual astronomical system, their significant and proper use has always been considerably esoteric in nature. - 对交点分析得出，在不同的水力特性下，交点水深与测线水深的比值范围固定在0.1~0.2之间，交点流速值与断面平均流速值有很好的对应关系。
The ratio range between depth of the point and depth of channel is fix up 0.1~0.2, and the velocity of point and average velocity of channel have nice relativity.
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