大暴雨 发表于 2025-3-23 12:53:27
C. J. Fraser BSc, PhD, CEng, MIMechE, MInstPet,J. S. Milne BSc, CEng, FIMechEBudget 发表于 2025-3-23 17:53:20
http://reply.papertrans.cn/64/6332/633149/633149_12.pngentice 发表于 2025-3-23 21:35:37
C. J. Fraser BSc, PhD, CEng, MIMechE, MInstPet,J. S. Milne BSc, CEng, FIMechE单独 发表于 2025-3-23 22:19:45
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The Engineering Laboratory,h the mathematics are either inadequate or analytically insoluble. Turbulence provides one notable example where seven basic unknowns, comprising three component mean velocities, their fluctuating components, and the pressure are governed by only five basic equations. The experimental method, consis躲债 发表于 2025-3-24 23:58:37
Measurement of Primary Data,n acquiring the primary data, transducers of one sort or another will have been used. The transducer may be considered as a device which converts a measured physical variable, or measurand, into some convenient form of signal. For a microcomputer-based data-acquisition system the transducer signal m