GRILL 发表于 2025-3-28 17:52:10
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Infinitesimal and Finite Mechanisms,ematic properties of the structure. In the forthcoming, these properties will be investigated for bar-and-joint assemblies, that is, for structures composed of straight bars and frictionless pin joints. Firstly, we survey the basic terms to be used in the analysis.流浪 发表于 2025-3-29 02:13:14
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Stealing Ideas from Nature,pied from nature, or which represent characteristics of natural systems or their analogues. In 1966 R-G Busnel, of the animal acoustics laboratory in Jouy-en-Josas in France, organised a meeting on the theme “Biological models of animal sonar systems” in which the Office of Naval Research of the USA割公牛膨胀 发表于 2025-3-29 12:41:44
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Didaktik der Evolutionsbiologieextent) with the volume which your body occupies. A similar sort of parameter has been proposed for animals which feed by filtering particles out of the water (e.g. barnacles, sea anemones) or the air (e.g. a spider with its web). The longer, thinner and more mobile the limbs the greater the relativ朦胧 发表于 2025-3-29 22:55:41
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almost an order of magnitude better resolution than before..As well as providing a more comprehensive and precise understanding of imaging through the atmosphere with large telescopes (both with and without AO), the new general theory also finds applications in the areas of laser communications and