North American Datum

The North American Datum (NAD) is the datum now used to define the geodetic network in North America. A datum is a formal description of the shape of the Earth along with an "anchor" point for the coordinate system. In surveying, cartography, and land-use planning, two North American Datums are in use: the North American Datum of 1927 (NAD27) and the North American Datum of 1983 (NAD83). Both are geodetic reference systems based on slightly different assumptions and measurements.

单词	North American Datum
释义	North American Datum 英语百科 North American Datum The North American Datum (NAD) is the datum now used to define the geodetic network in North America. A datum is a formal description of the shape of the Earth along with an "anchor" point for the coordinate system. In surveying, cartography, and land-use planning, two North American Datums are in use: the North American Datum of 1927 (NAD27) and the North American Datum of 1983 (NAD83). Both are geodetic reference systems based on slightly different assumptions and measurements.
随便看	Seriphidium nitrosum的意思 Seriphidium rhodanthum的意思 seriphidiums的意思 Seriphidium santolinum的意思 Seriphidium sawanense的意思 Seriphidium schrenkianum的意思 Seriphidium scopiforme的意思 Seriphidium semiaridum的意思 Seriphidium sublessingianum的意思 Seriphidium thomsonianum的意思 Seriphidium transiliense的意思 Seriphidium tridentatum的意思 seriphidium tridentatums的意思 seriph的意思 Seriphus的意思 Seriphus politus的意思 seriphus polituss的意思 seriphuss的意思 seriplane的意思 seriplane test的意思 seripositor的意思 Serique,Facteur Thymique的意思 Serir的意思 serir deposit的意思 Seririt的意思