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( Ex: 好 ou 你好 ou 花好月圆 )
guǎn tào
管套 guǎn tào
  1. 包在管道外以防管中物与管外(环境)产生热交换的绝缘材料
  2. 用于将铅皮管固定在石制品上的金属管套
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