| 单词 | refraction shooting |
| 释义 | > as lemmasrefraction shooting refraction shooting n. Geology seismic prospecting based on the travel time of shock waves generated at the earth's surface and moving nearly parallel to the bedding on a long base line, providing information on underground geological structure on a larger scale; cf. reflection shooting n. at reflection n. Compounds 2. ΘΚΠ society > occupation and work > industry > drilling for oil or gas > [noun] > prospecting for oil or gas reflection shooting1929 refraction profiling1929 refraction shooting1929 seismics1934 reflection profiling1938 doodlebugging1939 Vibroseis1961 1929 Trans. Amer. Inst. Mining & Metall. Engineers 81 606 The distances are short in reflection shooting compared with those in refraction shooting. 1960 C. Gatlin Petroleum Engin. iii. 37/1 Refraction shooting is used primarily as a reconnaissance tool to select areas and obtain interpretative data for the more detailed reflection method. 2002 L. Thomas Coal Geol. viii. 197/1 The energy input to the ground must be stronger for refraction shooting; consequently explosives continue to be the dominant energy source. < as lemmas |
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