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| dual propellant | |||
| dual propellant (包括液体双元推进剂、双基固体推进剂以及两级不同的推进剂) | |||
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双推进剂 : 50 phrases in 6 subjects |
| Aviation | 5 |
| Chemistry | 2 |
| General | 4 |
| Oil / petroleum | 1 |
| Space | 35 |
| Technology | 3 |
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