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I. Development of a cryogenic shock tube. II. Experimental investigation of the interaction of a shock wave with liquid helium I and II

颁布单位：[University:California Institute of... | 颁布时间：2010 | 实施时间：2010 | 学科分类：[High, Mach, Number, shock, waves,, second, sound, shock, waves, in, LHe, II]

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The role of language, manipulation and demonstration in the acquisition, retention, and transfer of conservation

颁布单位：[University of Alberta] | 颁布时间：1970 | 实施时间：1970 | 学科分类：[Number, concept, in, children--Study, and, teaching, (Elementary), Conservation, (Psychology)]

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