能源的种类能源的种类通常有以下几种：１．一次能源与一次能源二次能源是指从自然界直接取得，并不改变其基本形态的能源．如煤炭、石油、天然气、水力、核能、太阳能、生物质能、海洋能、风能、地热能等．它们在未被开发之前，处于自然赋存状态，称之为能源资源。世界各... Types of energy Energy types are usually the following: 1. Primary Energy and Primary Energy Secondary energy refers to energy that is taken directly from nature and does not change its basic form. Such as coal, oil, natural gas, water, nuclear energy, solar energy, biomass energy, ocean energy, wind energy, geothermal energy and so on. Before they are developed, they are in a state of natural existence and are called energy resources. The world ...