| 单词 | goniometer | 
| 释义 | go·ni·om·e·ter   (gō′nē-ŏmĭ-tər) n. 1.  An optical instrument for measuring crystal angles, as between crystal faces. 2.  A radio receiver and directional antenna used as a system to determine the angular direction of incoming radio signals. [Greek gōniā, angle; see  genu-1 in the Appendix of Indo-European roots + -METER.] go′ni·o·metric (-nē-ə-mĕtrĭk),  go′ni·o·metri·cal adj. go′ni·ome·try n. | 
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