• 1. two pipe system: 双管系统 | 双管供暖系统
• 2. two-pipe system: 双管系统 | 双管供暖系统
• 3. zoned two-pipe system: 分区两管制

更多释义

• 1.The system works because of the pipe between the two commands.
  因为在这两个命令之间使用了管道，所以系统能够正常工作。
  dict.yoduao.com
• 2.The system consists of two air blowers (one of them as a common spare), air piping and grid distribution pipe.
  这个系统包括两个送风机（其中一个备用）、空气管和氧化空气分布管。
  dict.yoduao.com
• 3.The air intake system of the engine is mainly composed of two parts: the air filter element and the intake pipe.
  发动机的进气系统主要由空气滤芯和进气管道两部分构成。
  dict.yoduao.com

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