• 1. closed system: 封闭系统 | 密闭系统 | 闭系统 | 闭合系
• 2. closed-system trap: 封闭型圈闭
• 3. symmetric closed system: 对称封闭系统

更多释义

• 1.A closed system would be, for instance, a glass of ice water with an ice cube in it, with the lid on top.
  一个封闭系统可以是，比如说，一杯放了一个冰块的冰水，顶上加了盖子。
  dict.yoduao.com
• 2.And that's the closed system.
  这就是闭系。
  dict.yoduao.com
• 3.It's a closed system.
  这是一个封闭的系统。
  dict.yoduao.com

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