羽毛球是如何製造的? How Badminton Birdies Are Made?
The badminton shuttlecock has been used for thousands of years. Everyday badminton players use plastic shuttlecocks, while serious players use feathered ones. Feathers must be a specific size and have a precise angle to them. If a machine with 26 sensors can't measure the exact degree of the feather, workers must manually do so with a specially calibrated chart. The process has many steps from then on, all taking into consideration feathers' angle and the shuttlecocks overall balance.
羽毛球是如何製造的? How Badminton Birdies Are Made?
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