• 1. Connected Sum: 连通和
• 2. boundary connected sum: 边界连通和
• 3. self-boundaxy connected sum: 边界自连通和

更多释义

• 1.This is the sort of sum which a well-connected high school in a rich country might aspire to raise.
  而这一系列的费用可能是一个发达国家的名牌高中希望筹集到的金额。
  dict.yoduao.com

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