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拉瓦尔喷管
avia. de Laval nozzle
space convergent-divergent nozzle; de Laval nozzle (收-扩喷管); Laval nozzle (收敛扩散喷管)
tech. contracting-expanding nozzle; converging-diverging nozzle
wind. Laval nozzle
拉瓦尔喷管: 2 phrases in 1 subject
Technology2

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