相变热图试验技术是通过在飞行器表面喷涂具有一定相变温度的相变涂料来进行大面积热测绘的一项风洞试验技术。
The phase change thermography technique is a wind tunnel test technique to spray some phase change paint on the aircraft surface for measuring heat distribution in a large area.
多波束测深仪是高精度、高效率的地形测绘设备，适合大面积的扫海测量作业，是21世纪水下地形测量必不可少的测绘仪器。
Multi-Beam Echo Sounder is an absolutely necessary seafloor mapping device with high accuracy and high efficient at 21st century. It is much fitted to sweep mapping for wide area.
多波束测深仪是高精度、高效率的地形测绘设备，适合大面积的扫海测量作业，是21世纪水下地形测量必不可少的测绘仪器。
Multi-Beam Echo Sounder is an absolutely necessary seafloor mapping device with high accuracy and high efficient at 21st century. It is much fitted to sweep mapping for wide area.
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