This paper presents doublegraph dual-beam speckle interferometry, and the experiment shows an agreeable result with the theoretical analysis.
作者在本文中首次提出双片双光束散斑干涉法，并成功地进行了实验。
2
The first graph he designed was a bubble chart that had double logarithmic axes, with income on one axis and health on the other.
他设计的第一个图形是一个带有一对对数坐标轴的气泡图，一条轴显示的是收入，另一条是健康。
3
One way to think about it, if you're really still attached to the idea of double integral as a volume what this measures is the volume below the graph of a function one.