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planimeter    
n. 测面器,求积计

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  • ACME Planimeter
    If you haven't visited before, it tries to figure out your location based on your internet address The area computation is done using spherical geometry, so it's correct for large regions The lines between points are drawn as great circles, to go along with the spherical area math
  • Planimeter - Wikipedia
    A planimeter, also known as a platometer, is a measuring instrument used to determine the area of an arbitrary two-dimensional shape There are several kinds of planimeters, but all operate in a similar way
  • Planimeter GPS Area Measure online version measure on map
    Planimeter - measure tool on Google Maps from VisTech Projects LLC This is a web tool for distance and area measurements on Maps It allows users to place pins on the map and to check distance between points or cities, to see Geo-coordinates for specific location, perimeter or area within a contour
  • Amazon. com: Planimeter
    Manufactured on farms or in facilities that protect the rights and or health of workers Shop products from small business brands sold in Amazon’s store Discover more about the small businesses partnering with Amazon and Amazon’s commitment to empowering them Learn more Das Pantograph-Planimeter
  • How Planimeters Work - Wabash College
    When a planimeter is used to measure a region, the user moves the right endpoint of the rod, the tracing point, around the boundary of the region to be measured
  • Planimeter : Measure Land Area and Distance on a Map - iPhone iPad App
    Planimeter measures distances and land areas on maps Search for a location by address, or let your iPhone, iPod touch, or iPad find your current location Start measuring by dropping pins on the map Measure your outdoor projects – lawns, fences or anything else seen on the satellite map
  • Planimeter | Surveying, Measurement, Calculation | Britannica
    Planimeter, mathematical instrument for directly measuring the area bounded by an irregular curve, and hence the value of a definite integral The first such instrument, employing a disk-and-wheel principle to integrate, was invented in 1814 by J H Hermann, a Bavarian engineer
  • About Mechanical and Electrical Planimeters to Measure Area
    Basically speaking, planimeters are area measuring tools Planimeters are precision instruments used to trace around a closed loop of an object to find its area Planimeters are used by engineers, surveyors, contractors, designers, medical professionals, and more
  • What is a Planimeter? - AllTheScience
    What is a Planimeter? A planimeter is an instrument used to measure the area of a two-dimensional shape, usually one which is too complex for manual measurement The device mechanises the process of calculating the area using a formula known as Green’s theorem





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