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tube |
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tube, in electronics: see electron tube electron tube, device consisting of a sealed enclosure in which electrons flow between electrodes separated either by a vacuum (in a vacuum tube) or by an ionized gas at low pressure (in a gas tube). ..... Click the link for more information. . tubeSee CRT and vacuum tube. tube 1. Anatomy a. short for Eustachian tube, Fallopian tube b. any hollow cylindrical structure 2. Botany a. the lower part of a gamopetalous corolla or gamosepalous calyx, below the lobes b. any other hollow structure in a plant 3. Brit the tube a. an underground railway system b. the tunnels through which the railway runs c. the train itself d. ™ the London underground railway system 4. Electronics a. another name for valve b. See electron tube cathode-ray tube 5. Surfing the cylindrical passage formed when a wave breaks and the crest tips forward
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| Imagine an enclosed horizontal tube with flexible vertical discs carrying the tea along in the proper direction (although the tubes in real life travel in any direction). Efforts were made to collect data for as many fluids and as wide a range of parameters as possible for horizontal tube bundles as well as single tubes with upward flow of boiling fluid. According to the Nusselt analysis, the heat transfer of the falling liquid film on a horizontal tube surface can be treated as many small plates of various inclination angles. |
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