Conservation of energy. James Prescott Joule's apparatus for measuring the mechanical equivalent of heat. Vector illustration

Conservation of energy. James Prescott Joule's apparatus for measuring the mechanical equivalent of heat. Vector illustration 图片
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Conservation of energy. James Prescott Joule's apparatus for measuring the mechanical equivalent of heat. Vector illustration
  • 素材ID:253357994
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  • 格式:矢量
  • 作者:Stanislav
  • 最大输出:可以放大缩小至任意尺寸