1.  sector
2.  fanshaped

• 1. 扇形: circular sector | sector | Fan | sectorial wave
• 2. 扇形衣褶: Fan-Shaped Pleats
• 3. 扇形齿轮: segment gear | Geared sector | sector gear | quadrant gear

更多释义

• 1.这只鸟把尾羽展成扇形。
  The bird fanned out its tail feathers.
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• 2.我们部队在田野里呈扇形散开。
  Our troops fanned out across the fields.
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• 3.部队向前推进时呈扇形散开。
  The troops fanned out as they advanced.
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