PDF(1082 KB)
PDF(1082 KB)
PDF(1082 KB)
勘察设计企业成本函数估计及盈亏临界点分析
Estimation of cost functions and analysis of profit and loss critical points in survey and design enterprises
| {{custom_ref.label}} |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
/
| 〈 |
|
〉 |