hammer chart
hammer chart A circular graticule divided by radial and concentric lines to provide a template with many compartments. It is used when calculating the terrain correction in gravity surveying.
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BASE LINE , BASE LINE
Survey line used in the government survey to establish township lines. Horizontal elevation line used as a centerline in a highway survey. Surveying , SURVEYING. Using little more than a compass and a 66-foot chain, early American surveyors set out early to chart the United States of America. Survey… Gravity surveying , airborne gravity survey A regional gravity survey undertaken from the air. Such surveys are now rapid and precise because of the development of gravi… Surveying Instruments , Surveying is the apportionment of land by measuring and mapping. It is employed to determine boundaries and property lines, and to plan construction… Divide , di·vide / diˈvīd/ • v. 1. separate or be separated into parts: [tr.] consumer magazines can be divided into a number of different categories | [intr.… Correct , correct
cor·rect / kəˈrekt/ • adj. free from error; in accordance with fact or truth. ∎ not mistaken in one's opinion or judgment; right. ∎ (of a thi…
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hammer chart