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supersonic
 supersonic
gen. 超声波
| commercial air transport
 commercial air transport
avia. 商用航空运输

supersonic ['s(j)u:pə'sɔnɪk] n
gen. 超声波〔频〕
 English thesaurus
supersonic ['s(j)u:pə'sɔnɪk] abbr.
abbr., mining. sps