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| Subject | English | Chinese |
| el. | statement of need | 需求清单 |
| el. | statement of need | 需求报告 |
| space | statement of operational need | 使用需求声明书 (美国，采购军用品时由军方提出的) |
| avia. | statement of operational need | 运行需求说明书 |
| avia. | statement of operational need | 使用需求说明书 |
| avia. | statement of operational need | 采购军用品时由军方提出的使用需求声明书 |