... 地面摄影测量 terrestrial photogrammetric survey 地面射线 ground ray 地面摄影测量术 geophotogrammetry ...
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ground X-ray fluorimeter 地面X射线荧光仪
ground gamma-ray spectrometry [核] 地面伽玛能谱测量
ground cosmic ray [地物] 地面宇宙线
ground X ray fluorimeter 地面X射线荧光仪
x-ray ground shadow 射线地面阴影
N a radio wave that travels directly between a transmitting and a receiving aerial 地面电波 → compare sky wave
Team members want to cut out as much of this cosmic ray interference as possible, even if it means moving the experiment 2km below ground.
研究队伍的成员想要尽量削减宇宙射线带来的影响，即便这意味着要将实验转移至地下2千米处进行。
Over the past 5 years, they have studied those galaxies in optical, near-infrared, and X-ray wavelengths using orbiting and ground-based telescopes.
在过去的5年中，他们通过用太空望远镜和地面望远镜研究了这些星系的光波、进红外线波和X光波。
This image provided by NASA combines infrared images from the ground (red, green) with X-Ray data from NASA's Chandra X-Ray Observatory in the supernova remnant W49B.
由美国宇航局提供。这张图像结合了来自地面(红色、绿色)的红外图像和来自钱德拉X射线天文台超新星残骸W49B的X射线数据。
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