| 释义 |
linkage
link·age L0187300 (lĭng′kĭj)n.1. a. The act or process of linking.b. The condition of being linked.2. A connection or relation; an association.3. A negotiating policy of making agreement on one issue dependent on progress toward another objective.4. A system of interconnected machine elements, such as rods, springs, and pivots, used to transmit power or motion.5. Electricity A measure of the induced voltage in a circuit caused by a magnetic flux and equal to the flux times the number of turns in the coil that surrounds it.6. Genetics An association between two or more genes such that the traits they control tend to be inherited together.linkage (ˈlɪŋkɪdʒ) n1. the act of linking or the state of being linked2. (Mechanical Engineering) a system of interconnected levers or rods for transmitting or regulating the motion of a mechanism3. (Electronics) electronics the product of the total number of lines of magnetic flux and the number of turns in a coil or circuit through which they pass4. (Genetics) genetics the occurrence of two genes close together on the same chromosome so that they are unlikely to be separated during crossing over and tend to be inherited as a single unit5. (Government, Politics & Diplomacy) the fact of linking separate but related issues in the course of political negotiationslink•age (ˈlɪŋ kɪdʒ)
n. 1. the act of linking, or the state or manner of being linked. 2. a system of links. 3. an association of two or more genes, usu. on the same chromosome, that tend to be inherited as a unit (link′age group`) and to express a set of characteristic traits. 4. an assembly of four or more rods for transmitting motion, usu. in the same plane or in parallel planes. 5. a factor or relationship that connects or ties one thing to another; link: Officials sought to establish a linkage between tax cuts and investment levels. 6. a measure of the voltage induced in a circuit, equal to the product of the magnetic flux and the number of turns in the surrounding coil. [1870–75] Thesaurus| Noun | 1. | linkage - an associative relationconnection, connexion, connectedness - a relation between things or events (as in the case of one causing the other or sharing features with it); "there was a connection between eating that pickle and having that nightmare"link, nexus - the means of connection between things linked in series | | 2. | linkage - (genetics) traits that tend to be inherited together as a consequence of an association between their genes; all of the genes of a given chromosome are linked (where one goes they all go)gene linkagehereditary pattern, inheritance - (genetics) attributes acquired via biological heredity from the parentsgenetic science, genetics - the branch of biology that studies heredity and variation in organisms | | 3. | linkage - a mechanical system of rods or springs or pivots that transmits power or motionmechanical system - a system of elements that interact on mechanical principles | | 4. | linkage - the act of linking things togetherfastening, attachment - the act of fastening things together |
linkagenounA logical or natural association between two or more things:connection, correlation, interconnection, interdependence, interrelationship, link, relation, relationship, tie-in.Informal: hookup.TranslationsLinkage
linkage1. Engineering a system of interconnected levers or rods for transmitting or regulating the motion of a mechanism 2. Electronics the product of the total number of lines of magnetic flux and the number of turns in a coil or circuit through which they pass 3. Genetics the occurrence of two genes close together on the same chromosome so that they are unlikely to be separated during crossing over and tend to be inherited as a single unit 4. the fact of linking separate but related issues in the course of political negotiations Linkage (genetics) Failure of two or more genes to recombine at random as a result of their location on the same chromosome pair. Among the haploid products of a cell which has gone through meiosis, two genes located in the same chromosome pair remain in their two original combinations of alleles (“parental”) unless an odd number of exchanges of homologous segments occurred within the interval bounded by their loci. The incidence of exchanges of homologous segments at meiosis is roughly proportional to the length of the chromosome segment between two loci. The percentage of recombinants thus provides an estimate of this length and a basis for constructing gene maps on which linked loci are arranged in linear order and spaced out in proportion to the recombination percentages between them. See Meiosis Linkage a mechanism consisting of links joined together in lower kinematic pairs. Linkages can be plane or spatial. In plane linkages, the links make contact around a circumference (hinges, turning pairs) or along a line (sliding pairs). In spatial linkages, the links are joined over cylindrical or spherical surfaces (turning pairs) or over planes (sliding pairs). Link gears and slider-crank mechanisms are also considered to be linkages. In technical literature, linkages are often referred to as pin-connected mechanisms. Linkages are simpler to fabricate, stronger, and more resistant to wear than cam and gear mechanisms. As a result, they are employed to transmit large forces in, for example, presses, forging machines, internal combustion engines, and loaders.
Linkage (in Russian, sharnir), a movable connection between two bodies. In a cylindrical linkage, the relative movement of the two bodies is rotation about an axis; in a spherical linkage, the relative movement is rotation about a point. A cylindrical linkage in a mechanism is called a rotary kinematic pair. It consists of a journal rotating in either a simple bearing or a rolling-contact bearing. A spherical linkage in a mechanism is referred to as a spherical kinematic pair. It may be either a ball and socket or a ball bearing. Such a linkage is difficult to manufacture. Therefore, it is often replaced by a universal joint, which consists of two or three cylindrical linkages that are connected in tandem and whose axes of rotation intersect at a single point. Various modifications of the universal joint may be used instead of a spherical linkage; such modifications differ in the number of intermediate links and in the type of kinematic pairs formed by the intermediate links. A linkage may be exposed or enclosed. An enclosed linkage is protected from dust or sand by a housing and is used in machinery that operates in air with a high dust content. Linkages are used not only in machine mechanisms but also in building systems, such as trusses. In such systems, linkages are employed to relieve the components of bending stresses and to reduce thermal stresses. N. I. LEVITSKII linkage[′liŋ·kij] (computer science) In programming, coding that connects two separately coded routines. (electromagnetism) flux linkage (genetics) Failure of nonallelic genes to recombine at random in meiosis as a result of their being located within the same chromosome. (mechanical engineering) A mechanism that transfers motion in a desired manner by using some combination of bar links, slides, pivots, and rotating members. Linkage (mechanism) A set of rigid bodies, called links, joined together at pivots by means of pins or equivalent devices. A body is considered to be rigid if, for practical purposes, the distances between points on the body do not change. Linkages are used to transmit power and information. They may be employed to make a point on the linkage follow a prescribed curve, regardless of the input motions to the linkage. They are also used to produce angular or linear displacement. See Mechanism If the links are bars the linkage is termed a bar linkage. A common form of bar linkage is one for which the bars are restricted to a given plane, such as a four-bar linkage. A commonly occurring variation of the four-bar linkage is the linkage used in reciprocating engines (see illustration). Slider C is the piston in a cylinder, link 3 is the connecting rod, and link 4 is the crank. (Link 1 is the fixed base, A and D are pivots, R is the length of the crank, L is the length of the connecting rod, and Θ denotes the angle of the crank.) This mechanism transforms a linear into a circular motion, or vice versa. The straight slider in line with the crank center is equivalent to a pivot at the end of an infinitely long link. See Pantograph linkage
linkage [lingk´ij] 1. the connection between different atoms in a chemical compound, or the symbol representing it in structural formulas; see also bond.2. in genetics, the association of genes having loci on the same chromosome, which results in the tendency of a group of such nonallelic genes to be associated in inheritance.link·age (lingk'ăj), 1. A chemical covalent bond. 2. The relationship between syntenic loci sufficiently close that the respective alleles are not inherited independently by the offspring; a characteristic of loci, not genes. linkage (lĭng′kĭj)n.1. a. The act or process of linking.b. The condition of being linked.2. A connection or relation; an association.3. A negotiating policy of making agreement on one issue dependent on progress toward another objective.4. A system of interconnected machine elements, such as rods, springs, and pivots, used to transmit power or motion.5. Electricity A measure of the induced voltage in a circuit caused by a magnetic flux and equal to the flux times the number of turns in the coil that surrounds it.6. Genetics An association between two or more genes such that the traits they control tend to be inherited together.link·age (lingk'ăj) 1. A chemical covalent bond. 2. The relationship between syntenic loci sufficiently close that the respective alleles are not inherited independently by the offspring; a characteristic of loci, not genes. linkage 1. The location of genes on the same CHROMOSOME so that the characteristics they determine tend to remain associated. 2. The tendency of genes to remain together during recombination. This is proportional to their proximity to each other. Sex linkage simply implies that the particular gene is located on an X or a Y chromosome. 3. The force that holds atoms together in a molecule. link·age (lingk'ăj) 1. A chemical covalent bond. 2. Form of connection between and among things.Linkage
LinkageThe ability to buy and sell the same security on different exchanges. Because the prices may differ on different exchanges, linkage may create opportunity for arbitrage. Linkage has become easier with the advent of electronic exchanges and trading platforms.See LKGE
See LKGElinkage
Related to linkage: linkage group, Genetic linkage, Complete linkage, Linkage analysisSynonyms for linkagenoun a logical or natural association between two or more thingsSynonyms- connection
- correlation
- interconnection
- interdependence
- interrelationship
- link
- relation
- relationship
- tie-in
- hookup
Synonyms for linkagenoun an associative relationRelated Words- connection
- connexion
- connectedness
- link
- nexus
noun (genetics) traits that tend to be inherited together as a consequence of an association between their genesSynonymsRelated Words- hereditary pattern
- inheritance
- genetic science
- genetics
noun a mechanical system of rods or springs or pivots that transmits power or motionRelated Wordsnoun the act of linking things togetherRelated Words |