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Total record count: 6269.

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Eng ID Term Definition
1381
dip of the horizon
See DIP.
1382
dipping compass
See DIP CIRCLE.
1383
dipsey lead
See LEAD: DEEP SEA.
1384
direction
In SURVEYING and mapping, the angle between a line or plane and an arbitrarily chosen REFERENCE LINE or PLANE.
1385
direction: base
In PHOTO­GRAMMETRY, the DIRECTION of the vertical plane containing the AIR BASE which might be expressed as a BEARING or an AZIMUTH.
1386
direction: grid
Horizontal DIRECTION expressed as ANGULAR DISTANCE from GRID NORTH.
1387
directional antenna
See ANTENNA.
1388
directional gyroscope
See GYROSCOPE.
1389
directional (or directed) radiobeacon station
A special type of radiobeacon station the emissions of which are intended to provide a definite TRACK for GUIDANCE.
1390
direction finder
See RADIO DIRECTION FINDER.
1391
direction (or directional) light
See LIGHT.
1392
direction method of observation
A method of observing angular relationships wherein the graduated CIRCLE is held in a fixed position, and the DIRECTIONS of the various SIGN... more
A method of observing angular relationships wherein the graduated CIRCLE is held in a fixed position, and the DIRECTIONS of the various SIGNALS are observed around the HORIZON. Thus, DIRECTIONS are pointings whereby angles are found by the differences in DIRECTION.
1393
direction of current
The direction toward which a CURRENT is flowing, called the SET of the CURRENT. Also called current direction.
1394
direction of gravity
See GRAVITY.
1395
direction of movement of the waves
Direction from which the WAVES arrive at a fixed point.
1396
direction of relative movement
See RELATIVE MOTION.
1397
direction of the force of gravity
See GRAVITY: DIRECTION OF.
1398
direction of tilt
The DIRECTION (AZIMUTH) of the PRINCIPAL PLANE of a PHOTOGRAPH. Also, the DIRECTION of the PRINCIPAL LINE on a PHOTOGRAPH.
1399
direction of traffic flow: established
A traffic flow pattern indicating the directional movement of traffic as established within a traffic separation scheme.
1400
direction of traffic flow: recommended
A traffic flow pattern indicating a recommended directional movement of traffic where it is impractical or unnecessary to adopt an establish... more
A traffic flow pattern indicating a recommended directional movement of traffic where it is impractical or unnecessary to adopt an established direction of traffic flow.