The urgency and problems for recycling utilization of metal secondary resource in China are highlighted in terms of resource saving, energy reduction and environment promotion.

 
  • 摘要从节约资源、减少能耗和改善环境方面说明我国开展金属二次资源循环利用的迫切性及面临的问题。
今日热词
目录 附录 查词历史