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| 试拌; 混合试验 | |||
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| 试用混合料; 试验配合; 试拌配合比; 试拌和; 试拌; 试配 | |||
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| 试配 | |||
| trial mixing: 8 phrases in 3 subjects |
| Construction | 1 |
| Hydroelectric power stations | 1 |
| Technology | 6 |
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