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Eng ID Term Definition
5621
track made good
See TRACK.
5622
track plotter
A PLOTTER used to plot the track or course of a craft.
5623
trade winds
Persistent WINDS, mainly in the lower ATMOSPHERE, which blow over vast regions from a subtropi­cal ANTICYCLONE toward the equatorial region... more
Persistent WINDS, mainly in the lower ATMOSPHERE, which blow over vast regions from a subtropi­cal ANTICYCLONE toward the equatorial regions. The predominant directions of the trade winds are from NE in the northern hemisphere and from SE in the southern hemisphere.
5624
traffic lane
An area within defined limits in which one-way traffic is established. Natural obstacles, including those forming separation zones, may cons... more
An area within defined limits in which one-way traffic is established. Natural obstacles, including those forming separation zones, may consti­tute a boundary.
5625
traffic separation line
See SEPARATION ZONE
5626
traffic separation zone
See SEPARATION ZONE
5627
traffic separation scheme
A ROUTEING measure aimed at the separation of opposing streams of traffic by appropriate means and by the establishment of TRAFFIC LANES.
5628
training wall
A wall, BANK, or JETTY, often submer­ged, built to direct or confine the FLOW of a RIVER or TIDAL CURRENT.
5629
trajectory
The curved path of something hurtling through space. In METEOROLOGY, curve traced by the successive positi­ons of a moving particle of air.... more
The curved path of something hurtling through space. In METEOROLOGY, curve traced by the successive positi­ons of a moving particle of air. Curve traced by the successive positions of the centre of a selected synop­tic system, such as a DEPRESSION. In OCEANOGRAPHY, the path followed by moving water particles. In electronics the path followed by electrons emana­ting from the cathode as in an electron tube.
5630
transceiver
A combination transmitter and receiver in a single housing, with some components being used by both parts. See TRANSPONDER.
5631
transducer
Any device for converting energy from one form to another (electrical, mechanical, or acoustic).
5632
transducer: magnetostriction
A TRANSDUCER that depends for its operation on the interac­tion between the magne­tiza­tion and the deformation of a material having magn... more
A TRANSDUCER that depends for its operation on the interac­tion between the magne­tiza­tion and the deformation of a material having magnetostric­tive properties.
5633
transformation
In PHOTO­GRAMMETRY, the process of projecting a PHOTOGRAPH (mathematically, graphically, or photographically) from its plane onto another p... more
In PHOTO­GRAMMETRY, the process of projecting a PHOTOGRAPH (mathematically, graphically, or photographically) from its plane onto another plane by translation, rotation, and/or scale change. The projection is made onto a plane deter­mined by the angular rela­tions of the camera axes and not necessa­rily onto a horizontal plane. See also RECTIFICATION.
5634
transforming printer
A specially designed projection printer of fixed geometry used for transforming the oblique components of a coupled camera installation, a M... more
A specially designed projection printer of fixed geometry used for transforming the oblique components of a coupled camera installation, a MULTIPLE-LENS CAMERA, or a panoramic camera onto a plane perpendicular to the axis of the system.
5635
transhipment or lightening area
An area designated for transfer of cargo from one vessel to another sometimes in order to reduce a vessel’s DRAUGHT. Also called cargo tra... more
An area designated for transfer of cargo from one vessel to another sometimes in order to reduce a vessel’s DRAUGHT. Also called cargo transfer area or cargo transhipment area.
5636
transient magnetism
See MAGNETISM: TEMPORARY.
5637
transient thermocline
See THERMOCLINE.
5638
transit
In ASTRONOMY, the apparent passage of a STAR or other CELESTIAL BODY across a defined line of the CELESTIAL SPHERE, as a MERIDIAN, PRIME VER... more
In ASTRONOMY, the apparent passage of a STAR or other CELESTIAL BODY across a defined line of the CELESTIAL SPHERE, as a MERIDIAN, PRIME VERTICAL, or ALMUCANTAR. When no line is specified, a transit across the MERIDIAN is usually intended. See MERIDIAN TRANSIT. The apparent passage of a STAR or other CELESTIAL BODY across a line in the RETICLE of a TELESCOPE, or some LINE OF SIGHT. The apparent passage of a smaller CELESTIAL BODY across the disk of a larger CELES­TIAL BODY. A surveying instrument composed of a HORIZONTAL CIRCLE graduated in circular measure and an ALIDADE with a TELESCOPE which can be reversed in its supports without being lifted therefrom. Also, the act of making such a reversal. A THEODOLITE having a TELESCO­PE that can be transited in its supports is a transit, and is sometimes termed a transit theodolite. All modern THEODOLITES are transits. An astronomical instrument having a TELESCOPE which can be so adjusted in position that the LINE OF SIGHT may be made to define a VERTICAL CIRCLE. A transit used in astronomical work is usually termed either an astro­nomic­(al) transit or a transit instrument. In NAVIGATION, the position of two distant, fixed objects when they are in line to an observer; the line passing through them and the observer being a LINE OF POSITION. See also RANGE.
5639
transit: broken telescope
A precise astronomic TRANSIT or THEODOLITE in which the light passing through the OBJECTIVE LENS is reflected through a right angle by a pri... more
A precise astronomic TRANSIT or THEODOLITE in which the light passing through the OBJECTIVE LENS is reflected through a right angle by a prism placed in the HORIZONTAL AXIS. This hollow axis is continued beyond the supports, and the EYEPIECE is fitted at one end.
5640
transit: local
The apparent passage of a CELESTIAL BODY across the MERIDIAN of the observer. See also MERIDIAN TRANSIT.