primary air

基本解释

• 一次空气

英汉例句

双语例句

• The curve of relationship between flame speeds and the primary air ratio is got, and when primary air ratio is about 0.
  得出了二甲醚火焰传播速度与一次空气系数的关系曲线，并且在一次空气系数约为0。
• In experiment, steady operating point of combustion can be obtained mainly by setting primary air factor and the size of spout.
  在实验中，主要通过调整一次空气系数和引射器喷口的大小，达到稳定燃烧的运行工况。
• Based on the experimental result and flame stability theory, the possibility to obtain the optimum parameters of the burners are discussed under different primary air coefficient.
  在实验结果的基础上利用火焰稳定理论，论证了在不同一次空气系数时获得最佳燃烧器参数的可能性。

权威例句

• Suddenly, he remembered how he had to hold two water buckets up in the air in primary school, along with the faces of the headmaster and his homeroom teacher.
  NPR: Literature and Lullabies from the 'Axis of Evil'
• In 2008, Reapers and Predators, the Air Force's two primary remote-controlled vehicles, will spend almost 120, 000 hours in the air on reconnaissance and intelligence missions, up from just over 80, 000 hours last year and less than 5, 000 in 2001.
  FORBES: War Without Soldiers
• Satellite and conventional over-the-air broadcasting will remain the primary high-def program sources until cable operators decide to carry high-def content and Hollywood delivers prerecorded HD cassettes or discs.
  FORBES: Something Special in the Airwaves

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词组短语

短语

• primary -air flow rate 一次风率
• primary air -handling unit 新鲜空气处理机组;鲜风柜
• Primary air pre -heater 一级空预器
• primary air fan -coil system 风机盘管加新风系统
• wide -range primary air nozzle 宽调节比一次风喷口

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专业释义

能源科学技术

• 一次风

  At the same time, the primary air system was monitored on-line.
  与此同时对锅炉一次风系统进行了在线监测。

  机械工程

• 一次风
• 一次空气

物理学

• 一次（燃烧）空气
• 主气流
• 主空气

土木建筑工程

• 一次空气

冶金工程技术

• 一次空气

化学

• 一次空气

地球科学

• 原生空气

航空、航天科学技术

• 一股流