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单词 laboratory frame
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laboratory frame
laboratory frame n. Nuclear Physics (more fully laboratory frame of reference) the frame of reference in which a laboratory is stationary, and with respect to which measurements of particle energy, velocity, etc., are generally made.
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1945 J. A. Wheeler & R. P. Feynman in Rev. Mod. Physics 17 165/2 The first and simplest procedure is to look at the particle from a frame of reference moving with nearly its own speed, apply in this frame the expression which we already have, and then transform back to the laboratory frame of reference.
1971 Sci. Amer. June 76/3 The theoretical analysis of events in the rapidly moving frame can be made with some degree of confidence and transformed back to the laboratory frame. In this way theory can be compared with experiment.
2000 J. McFall tr. K. Wille Physics of Particle Accelerators i. 23 We calculate this by applying a Lorentz transformation to obtain the relativistically invariant momentum of the centre of mass in the laboratory frame.
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