接触
发表于 2025-3-26 23:52:25
Lateral Vibrations and Whirling Speeds,nstant. In consequence, ‘approximate’ methods have been developed for general use, ‘exact’ analysis being applied only to a few standard cases. These approximate methods are usually limited to the determination of the fundamental (that is, first mode) frequency which, as in most multi-degree-of-free
Occlusion
发表于 2025-3-27 05:03:59
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温室
发表于 2025-3-27 08:33:25
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治愈
发表于 2025-3-27 13:07:21
Vibrations of Single-degree-of-freedom Systems,used to vibrate by externally applied forces. The duration and severity of the vibration will depend on the relation between the external forces and the mechanics of the system, and will be discussed later.
比喻好
发表于 2025-3-27 16:48:02
Control Systems,titive jobs, where a small human-error may lead to very expensive consequences. Such functions can also often be taken over by automatic control systems, to give higher outputs of a more consistent quality and with increased safety.
Obsessed
发表于 2025-3-27 19:04:04
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BOOR
发表于 2025-3-28 01:52:04
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Semblance
发表于 2025-3-28 03:24:10
High Temperature Dependence of a Pulse Tube Engine,ulse tube refrigerator that already uses in space as a high-reliable sensor cooler. It is a potential new method to generate power or cooling power by using car waste heat. Its temperature dependence is investigated by a numerical simulation, which shows that its swept volume ratio of displacer over
该得
发表于 2025-3-28 09:00:33
A Finite Element Presentation of Optimum Design for Filament-Winding Composite Cylindrical Pressure Vesselsmany applications, fibre/matrix materials are lighter, stronger and possibly cost effect when compared with traditional materials like metals. Many high-strength composite products are fabricated using the filament winding process. In this process, bands of resin-impregnated fibre are wound over a c
forager
发表于 2025-3-28 10:25:01
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