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试验说明
| 书
| 试验说明 | |
| agric. | experimental explanation |
| 书 | |
| gen. | books; book; bookery |
| econ. | letter |
| environ. | book |
| libr. | fore-edge painting; fore-edge title |
| |||
| test instruction | |||
| |||
| experimental explanation | |||
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试验说明 : 16 phrases in 7 subjects |
| Automobiles | 1 |
| Aviation | 8 |
| Business | 2 |
| Earth sciences | 1 |
| Electronics | 2 |
| Shipbuilding | 1 |
| Space | 1 |
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