element beneficial cycle
物质良性循环
基于1个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
从根本上消除草浆生产黑液的污染问题，建立起造纸工业和农业之间物质良性循环新模式。
The environmental pollution of black liquor would be solved and a new pattern of virtuous cycle was set up between paper industry and farming.
youdao
应用推荐
模块上移
模块下移
不移动