节能技术及其发展方向尹锡勋１节约能源的必要性和紧迫性煤、电、油、气是当前应用的主要能源，它们与国民经济发展和人民生活密切相关，有时往往因为缺煤少电就给我们生产和生活造成很大的影响。而另一方面，我们因为没有合理和科学地利用能源，使我们的能源利用效率很差... Energy-saving technology and its development direction Yin Xixun 1 The Necessity and Urgency of Saving Energy Coal, electricity, oil and gas are the main energy sources currently used. They are closely related to the development of national economy and people’s livelihood. Our production and life have a huge impact. On the other hand, because of the lack of rational and scientific use of energy, we make our energy use inefficient.