After the simulation of the well surrounded by two and three stratums, the two-dimensional spectrum is calculated while the curve of wave slowness changes with the frequency is drawn.

分别计算了井外有两层、三层介质时井内声波传播的二维谱，绘制了时差随频率的变化曲线。

youdao

Method of two and Three dimensional holo spectrum plotted by MATLAB software is set forth.

并阐述了利用MAT - LAB软件绘制二维全息谱图和三维全息谱图的方法。

youdao

The analysis and research on the statistical method for two-dimensional random load spectrum of vehicle transmission are presented in this paper.

本文对传动系多工况二维随机载荷谱的统计方法进行了分析与研究。

youdao

Two-dimensional tracking would be managed via the existing Move's visual spectrum camera, or by using a display-mounted IR emitter in conjunction with a remote mounted sensor (again, just like the Wii controller).

ENGADGET: Sony patent application reimagines PlayStation Move with ultrasonic capabilities, IR emitters