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Vibration Analysis: Methods and Applications, and strong and often conflicting views were held by the leading scientists of the day. Leeuwenhoek’s (1677) animalcules (described in his famous letter of 1676) are now considered to have included bacteria, and although at the beginning of the period under review there were those who thought thatBrocas-Area 发表于 2025-3-24 19:59:24
https://doi.org/10.1007/978-1-4020-8347-1the energy transformation depend on the materials moved. The six different categories of energy—nuclear, chemical, mechanical, radiant, electrical, and heat—are interconvertible, as shown in Figure 1, but whereas the first five forms of energy (“high” forms) can be converted completely to heat (rand休闲 发表于 2025-3-25 02:42:25
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