大田作物理论测产中八五折扣系数合理性的探讨
张兰清
大田作物理论测产中八五折扣系数合理性的探讨
Discussion on the 85% Coefficient Rationality in the Theoretical Product Estimate of the Field Crop
| {{custom_ref.label}} |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
/
| 〈 |
|
〉 |