instrument air造句

• Design code for instrument air supply system
  仪表供气设计规定
• Code for the design of instrument air supply system for petrochemical industry
  石油化工仪表供气设计规范
• Quality standard for instrument air
  测量气体的质量标准
• All main gas line shall be at least 3 / 8 ” diameter ( 1 / 2 ” for plant / instrument air and n2 lines )
  所有气体干管的直径为3 / 8英寸(仪器空气干管直径为1 / 2英寸) 。
• All gases shall be supplied from pressurized gas cylinders except for plant / instrument air that is supplied from the production facilities
  除了仪器空气（工厂空气）是工厂直接生产外，其余气体都是采用高压气瓶柜供气。
• Some changes are needed in the configuration of the plant to reflect the changes that have occurred on the site , primarily that both the hydrogen recovery plant that was fed with purge gas and supplied instrument air and the site auxiliary boilers that provide low pressure steam have been dismantled
  装置布局发生了一些变化，主要的两项就是拆除了氢回收装置和辅助锅炉，氢回收装置消耗吹扫气和仪表空气，辅助锅炉曾经用来提供低压蒸汽。