英语词汇positive pressure air system怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
All sootblowers shall be provided with a positive pressure, sealing air system to wall boxes and poppet valves. This air shall be obtained from the seal air fan system.
所有的吹灰器都应配有正压、密封空气系统至壁箱和圆盘阀。该处空气来自密封空气风机系统。
2
When setting positive pressure mechanical air supply system in smoke controlling stair hall, the outer window in the hall must be fixed.
楼梯间设置正压送风系统时，楼梯间设置的外窗应明确为固定窗；

单词	positive pressure air system
释义	positive pressure air system 简明释义正压空气系统专业释义 1 管理学正压空气系统双语例句 1 All sootblowers shall be provided with a positive pressure, sealing air system to wall boxes and poppet valves. This air shall be obtained from the seal air fan system. 所有的吹灰器都应配有正压、密封空气系统至壁箱和圆盘阀。该处空气来自密封空气风机系统。 2 When setting positive pressure mechanical air supply system in smoke controlling stair hall, the outer window in the hall must be fixed. 楼梯间设置正压送风系统时，楼梯间设置的外窗应明确为固定窗；
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