·2,447,543篇论文数据，部分数据来源于NoteExpress
The measuring method and its accuracy analysis for extension and piercing of new auxiliary shaft in Fankou Lead Zinc Mine are mainly introduced in this paper.
介绍了凡口铅锌矿新副井延深贯通工程实践中的测量方法及其精度分析。
youdao
应用推荐
模块上移
模块下移
不移动