将下面这段文字翻译成英文，并以Markdown形式格式化输出。段落前请加上一个标题**The Significance of Mechanical Energy**。  
机械能在物理学的应用中具有极其重要的意义。在能源转换和分配中，机械能充当了关键角色。例如，水力发电就是利用水流的机械能来产生电能。机械能不仅在工程和技术领域能提供高效的动力源，而且在微观层面上，比如分子间的能量传递也同样发挥着重要作用。随着科技的发展，对于机械能的研究也变得越来越重要。
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# The Significance of Mechanical Energy
Mechanical energy plays an extremely important role in the application of physics. In energy conversion and distribution, mechanical energy acts as a key player. For example, hydroelectric power generation utilizes the mechanical energy of water flow to produce electrical energy. Not only does mechanical energy provide an efficient source of power in engineering and technology fields, but it also plays a crucial role at the microscopic level, such as in the transfer of energy between molecules. With the development of science and technology, research on mechanical energy has become increasingly important.
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