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双推进剂
avia.
dual propellant
space
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)
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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