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| 预〔初步，探索性〕试验 | |||
| 初步试验 | |||
| 试运转 | |||
| 预［初步］试验; 探索性试验 | |||
| 预试验; 预试; 试探性试验; 初步实验 | |||
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trial test : 37 phrases in 9 subjects |
| Animal husbandry | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Business | 3 |
| Communications | 1 |
| Engineering geology | 1 |
| Polygraphy | 3 |
| Shipbuilding | 17 |
| Technology | 9 |
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