triangulation chain造句

"triangulation chain"是什么意思   


  1. Measurement of the triangulation chain comprises 258 main triangles and 265 geodetic vertices.
  2. Later, Prof . V鋓s鋖?developed a method to multiply an optical length reference using white light interferometry to precisely determine lengths of baselines used in triangulation chains.
  3. In the 1920s and 1930s Finland was doing its first precision triangulation chain measurements, and to create long-distance vertices Prof . V鋓s鋖?proposed usage of flash-lights on altitude balloons, or on some big fireworks rockets.
  4. It's difficult to find triangulation chain in a sentence. 用triangulation chain造句挺难的


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