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| 单词 | line of flow |
| 释义 | > as lemmasline of flow line of flow in Hydrodynamics, an imaginary curve so drawn within a liquid at any instant that at each point of the curve the instantaneous velocity of the liquid is along the tangent. In general a line of flow is not the path of a particle, but varies with the time. But when the motion is steady, i.e. not a function of the time, the lines of flow are fixed, and are paths of particles, being then called stream-lines. tube of flow, an imaginary tube bounded by surfaces across which there is no flow of liquid or electric current.extracted from flown.1< as lemmas |
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