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| plasticizing | |||
| toughen | |||
| toughening | |||
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增 韧 : 38 phrases in 12 subjects |
| Architecture | 1 |
| Automobiles | 3 |
| Aviation | 1 |
| Chemistry | 1 |
| Drilling | 1 |
| General | 1 |
| Life sciences | 1 |
| Oil / petroleum | 2 |
| Plastics | 4 |
| Polymers | 9 |
| Space | 1 |
| Technology | 13 |
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