名词
中文翻译：翅膀的外壳同义词
同义词：
['wingcase', 'wingcover']
例句：
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1. The bird's wings are protected by a tough, leathery casing.
鸟的翅膀被一层坚韧的皮革包裹着。
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2. The scientist carefully removed the protective casing from the specimen.
科学家小心翼翼地从标本上取下了保护套。
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3. The casing is designed to protect the fragile parts of the device.
这个外壳设计用来保护设备的脆弱部分。