凡能提供某种形式能量的物质,或是物质的运动,统称为能源.它是人类取得能量的来源,包括已开采出来的可供使用自然资源与经过加工或转移的能量的来源,尚未开采出的能量资源不列入能源的范畴,它是我们常说的机械能、热能、化学能、原子能、生物能、光能等的总称.能源又有多种分类形式:一、一次能源与二次能源存在于自然界,可直接获得而无须改变其形态和性质的能源称为一次能源,亦称天然能源,如原 Anything that provides some form of energy, or a movement of matter, collectively referred to as energy, is a source of human energy, including the source of energy that has been mined for the use of natural resources and processed or transferred, yet untapped Energy resources are not included in the scope of energy, it is what we often say mechanical energy, thermal energy, chemical energy, atomic energy, bio-energy, light energy, etc. Energy has a variety of classification: a primary energy and secondary Energy exists in nature, can be directly obtained without changing the shape and nature of the energy called primary energy, also known as natural energy, such as the original