一、问题的提出“七五”期间,企业上等级,已成为加强工业企业管理的中心工作,而节能上等级是企业升级的重要组成部分。机电企业能源费用一般占生产成本比重较少,且产品技术工艺 First, the issue raised during the “7th Five-Year Plan” period, the enterprise has become a central task in strengthening the management of industrial enterprises, and the energy-saving rating is an important part of the company’s upgrade. Energy costs of electromechanical companies generally account for a small proportion of production costs, and product technology processes