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Aviation
containing
segmented
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Chinese
segmented
circle
扇形标志
(在无塔台的机场上用这种目视标志来提供起落航线的信息)
segmented
expanding die
分片式胀形模
(用胀开式的阴模分段“扇形件”,从工件内部加压到所需外形用的模具)
segmented
expanding die
〔支〕分片式胀形模
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