Synonym: equality, equating, equivalence, par. Similar words: situation, evaluation, graduation, adequate, out of the question, nation, formation, relation. Meaning: [-eɪʃn] 
n. 1. a mathematical statement that two expressions are equal 2. a state of being essentially equal or equivalent; equally balanced 3. the act of regarding as equal.
n. 1. a mathematical statement that two expressions are equal 2. a state of being essentially equal or equivalent; equally balanced 3. the act of regarding as equal. 
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151 The derivation of the relationship between the paraxial wave equation and the complex source points is given and proved.
152 This paper studies on the law of the kinetic energy correction factor near a groyne by a flume experiment basing on one dimensional energy equation of steady flow.
153 The mathematical models of this inverse problem are the vector Lam é equation and scale wave equation.
154 The wave equation having general forms of planar simple harmonic wave is deduced in this article. It is simple and accurate to solve wave equation by using this formula.
155 Governing equations adopted are Stokes equation for momentum and Laplace equation for energy.
156 From Maxwell's equation, the transmitting behavior in bulk metal and the reason why microwave does not effectively couple with bulk metal are analyzed.
157 This paper presents a new method for an estimation of the axis of rotation based on line element geometry and kine-matic equation.
158 This paper deals with the oscillation of the first order nonlinear neutral type functional differential equation, and obtains sufficient criterion of the equation oscillation.
159 This paper introduces some methods for solving constant coefficient non-homogeneous linear differential equation by means of examples .
160 This paper proposes a new model of exponential velocity profile equation for laminar flow.
161 The experiment shows that under the action of sinusoidal voltage, current flowing through the sample is mainly caused by the motion of slow polarization effect that do not obey RLC circuit equation.
162 A method of ascertain GPS within cone above observation station with circle equation and line equations, and adjudicate.
163 The surface equation of metallic spiral casing was obtained by applying the enveloping surface theory.
164 The high - order boundary conditions for the problems of Laplace equation in infinite region hare been developed.
165 The main function of constraint management include the establishing, modification, deletion and the detection of validity of the constraint equation, etc.
166 Except the Analysis of Variance Estimator, these approaches all need to solve a non-linear equation, which does not have explicit solution, and only has an iteration solution in general.
167 The results show that the modified equation of state is more accurate.
168 Then we prove the isometrical identity and inversion formula of the solution of the wave equation.
169 The parameters of JWL equation of state for detonation products of ROTL 905 aluminized explosive were calculated.
170 This thesis mainly studies the problem of the boundary value of second-order and third-order nonlinear and linear difference equation.
171 The parameters in Langmuir equation are characterized more by the precipitation than the adsorption of Cu.
More similar words: situation, evaluation, graduation, adequate, out of the question, nation, formation, relation, donation, location, operation, education, zonation, national, sensation, summation, allegation, inflation, violation, migration, isolation, radiation, variation, limitation, accusation, nationwide, regulation, educational, reparation, revelation.