| 单词 | trigonometrical survey |
| 释义 | > as lemmastrigonometrical survey trigonometrical functions, those functions of an angle, or of an abstract quantity, used in trigonometry, viz. the sine, tangent, secant, etc.: see trigonometry n. trigonometrical point, trigonometrical station, a reference point on high ground, usually marked by a small pyramidal structure, used in triangulation. trigonometrical survey, a survey of a country or region performed by triangulation and trigonometrical calculation.extracted from trigonometricaladj.< as lemmas |
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