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Example: The McGraw Hill Dictionary of Engineering

linear strain

 

the scanning sector, which may be a complete 360° { 'lin •ē•әr 'skan•iη }

linear strain [MECH] The ratio of the change in the length of a body to its initial length. Also known as longitudinal strain. { 'lin •ē•әr ¦strān }

linear system [CONT SYS] A system in which the outputs are components of a vector which is equal to the value of a linear operator applied to a vector whose components are the inputs. { 'lin •ē•әr 'sis•tәm }

linear system analysis [CONT SYS] The study of a system by means of a model consisting of a linear mapping between the system inputs (causes or excitations), applied at the input terminals, and the system outputs (effects or responses), measured or observed at the output terminals. { 'lin •ē•әr 'sis•tәm ə'nal•ə•səs }

linear velocity See velocity.  { 'lin •ē•әr vә'läs•әd•ē }

line clinometer [ENG] A clinometer designed to be inserted between rods at any point in a string of drill rods. { 'līn •klīnäm•әd•әr }

line driver [ELECTR] An integrated circuit that acts as the interface between logic circuits and a two-wire transmission line. { 'līn drīv•әr }

line functions [IND ENG] Organizational functions having direct authority and responsibility. { 'līn fəηk•shәnz }

line hydrophone [ENG ACOUS] A directional hydrophone consisting of one straight-line element, an array of suitably phased elements mounted in line, or the acoustic equivalent of such an array. { 'līn 'hī•drә•fōn }

line level [ENG] A small spirit level fitted with hooks at each end so that it can be hung on a horizontally stretched line. { 'līn lev•әl }

line loss [ELEC] Total of the various energy losses occurring in a transmission line. [ENG] The quantity of gas that is lost in a distribution system or pipeline. { 'līn lὸs }

line lubricator See line oiler. { 'līn lübrә•kā•dәr }

line microphone [ENG ACOUS] A highly directional microphone consisting of a single straight-line element or an array of small parallel tubes of different lengths, with one end of each abutting a microphone element. Also known as machine-gun microphone. { 'līn mī•krə•fōn }

line mixer See flow mixer. { 'līn mik•sәr }

line of action [MECH ENG] The locus of contact points as gear teeth profiles go through mesh. { 'līn əv ak•shәn }

line of balance [IND ENG] A production planning system that schedules key events leading to completion of an assembly on the basis of the delivery date for the completed system. Abbreviated LOB. { 'līn əv bal•əns }

line of fall [MECH] The line tangent to the ballistic trajectory at the level point. { 'līn əv ¦fὸl }

line of flight [MEC] The line of movement, or the intended line of movement, of an aircraft. guided missile, or projectile in the air.{ 'līn əv ¦flīt }

line of impact [MECH] A line tangent to the trajectory of a missile at the point of impact.{ 'līn əv 'im•pakt  } 

line-of-sight velocity See radial velocity. { 'līn əv sīt və'l äs•əd•ē }

line of thrust [MECH] Locus of the points through which the resultant forces pass in an arch or retaining wall. { 'līn əv 'thrəst }

line of tunnel [ENG] The width marked by the exterior lines or sides of a tunnel. { 'līn əv tən•әl }

line oiler [MECH ENG] An apparatus inserted in a line conducting air or steam to an air- or steam-activated machine that feeds small controllable amounts of lubricating oil into the air or steam. Also known as air-line lubricator; line lubricator. { 'līn ὸi•lәr }

line pack [ENG] The actual amount of gas in a pipeline or distribution system. { 'līn pak }

liner [DES ENG] A replaceable tubular sleeve inside a hydraulic or pump-pressure cylinder in which the piston travels. [ENG] A string of casing in a borehole. { 'līn•әr }

liner bushing [DES ENG] A bushing, provided with or without a head, that is permanently installed in a jig to receive the renewable wearing bushings. Also known as master bushing. { 'līn bùsh•iη }

line rod See range rod. { 'līn räd }

liner plate cofferdam [CIV ENG] A cofferdam made from steel plates about 16 inches (41 centimeters) high and 3 feet (91 centimeters) long, and corrugated for added stiffness. { 'līn plāt kòf•ər•dam }

line scanner [ENG] An infrared imaging device which utilizes the motion of a moving platform, such as an aircraft or satellite, to scan infrared radiation from the terrain. Also known as thermal mapper.{ 'līn skan•ər }

line shafting [MECH ENG] One or more pieces of assembled shafting to transmit power from a central source to individual machines. { 'līn shaft•iη }

linesman [ENG] 1. A worker who sets up and repairs communication and power lines. 2. An assistant to a surveyor. { 'līnz•mәn }

line space lever [MECH ENG] A lever on a typewriter used to move the carriage to a new line. { 'līn ¦spās lev•әr }

line voltage [ELEC] The voltage provided by a power line at the point of use. { 'līn vōl•tij }

lining bar [DES ENG] A crowbar with a pinch, wedge, or diamond point at its working end.{ 'līn•iη bär }

lining pole See range rod. { 'līn•iη pōl }

link [CIV ENG] A standardized part of a surveyor's chain, which is 7.92 inches (20.1168 centimeters) in the Gunter's chain and I foot (30.48 centimeters) in the engineer's chain. [DES ENG] 1. One of the rings of a chain. 2. A connecting piece in the moving parts of a machine. { 'liηk }

linkage [MECH  ENG] A mechanism that transfers motion in a desired manner by using some combination of bar links. slides, pivots, and rotating members.   { 'liηk•ij }

link V belt [DES ENG] A V belt composed of a large number of rubberized-fabric links joined by metal fasteners.  { 'liηk 'vē belt }


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