- Industry: Earth science
- Number of terms: 93452
- Number of blossaries: 0
- Company Profile:
Founded in 1941, the American Congress on Surveying and Mapping (ACSM) is an international association representing the interests of professionals in surveying, mapping and communicating spatial data relating to the Earth's surface. Today, ACSM's members include more than 7,000 surveyors, ...
(1) A polygon lying entirely in one plane. (2) A portion of a plane bounded by straight lines. This definition and the preceding one are approximately equivalent. (3) The geometric figure formed by choosing a sequence of points P <sub>1</sub>, P <sub>2</sub>,...P <sub>N</sub> on a plane, joining each point with the next in sequence by a straight line having the two points as end points, and joining the last point, P <sub>N</sub>, to the first point, P <sub>1</sub>, by a similar straight line. (4) A planar figure consisting of N straight lines and N points such that each line is included between just two points and each point lies on just two lines. Definitions (3) and (4) are equivalent for all practical purposes. The figure defined either way is also called a simple polygon. Each line (called a side) is a segment terminating at the two points (called vertices) on which it lies. A simple polygon divides the plane into two parts a part (called the interior) internal to the polygon and a part (called the exterior) external to the polygon. The two parts are distinguished by the characteristic that any line through an internal point either coincides with a side of the polygon or intersects the polygon in exactly two points. If the polygon is a convex polygon, lines can be drawn through points in the exterior without intersecting the polygon. If the polygon is not convex, there is at least one point in the exterior through which lines can be drawn not intersecting the polygon. All points which can be connected to this point by segments not intersecting the polygon then constitute the exterior of the polygon. Angles measured in the interior, between sides, are called internal angles or interior angles; angles measured in the exterior, between sides, are called external angles or exterior angles. The sum of all internal angles is π(N-2).
Industry:Earth science
Linje midtveis mellom linjene side av noen stripe land av uniform bredde som f.eks, gaten eller rett måte.
Industry:Earth science
En bank bank og en offentlig myndighet som regulerer en nasjon depository institusjoner og styrer mengde penger.
Industry:Earth science
En klasse med panoramautsikt kameraet et dobbelt dove prisme foran linsen system er rotert mens linsen systemet selv blir værende festet. Denne konfigurasjonen kan fotografere gjennom 180 <sup>o</sup> eller mer.
Industry:Earth science
(1) En kart projeksjon trans-dannende paralleller av breddegrad i sirkler med radier som er geometrisk gjennomsnitt av de av de stereographic og asimut lik området kart anslag. R for radiusen i sirkelen som representerer en parallell av breddegrad φ er gitt av r = 2 κ R½ (tan¼ (π - 2φ) sin¼ (π - 2φ)), i hvilke κ er skaleringsfaktoren og r er radius for sfæren. Meridians representeres av radier av disse konsentriske sirkler, og har samme beskrivelsen av radier av den overordnede graticules. (2) En noe lignende kart projeksjon, basert på det harmoniske gjennomsnittet i stedet for på geometriske gjennomsnittet av radier og med omfanget endret for å få det minste totale feilen på et kart over gitt radius. Denne varianten ble introdusert av A. E. Young i 1920.
Industry:Earth science
アンテナ、オープン エンド、疎コイルらせんの形で;距離約 1 ターンのアンテナ設計された波長にほぼ同じです。は、その軸の方向にかなりのゲインをしています。高利得と小さなサイズで設計された波長） のため、それより長波長信号通過衛星などを受信するため使用されています。
Industry:Earth science
Bei der Beschreibung einer Traverse, der Azimut und Länge der Traverse zusammen als eine einzige Zeile.
Industry:Earth science
Zem virsmas atsauci faktisko dziļumu. Tas ir redzams uz gludas lapas dziļumu.
Industry:Earth science
