通气

• Any of several tough , porous leather substitutes
  通气性强的塑料几种粗糙的多孔的皮革代用品
• Patients are mechanically ventilated for several reasons
  病人因多种原因需要进行机械通气。
• Scuba , snorkeling , horse riding , barbecues
  氧气,通气管潜水,骑马,烧烤
• Electrolyte for vented nickel - cadmium cells
  通气型镍镉电池用电解液
• Allow three to five seconds for these rapid ventilations
  这样做3 ? 5秒以达到快速通气的目的。
• First , heels are excellent for aerating lawns
  首先，高跟鞋用来给草坪通气是艺术极好的确是的。
• Specification for airbricks and gratings for wall ventilation
  墙壁通风用通气空心砖和花栅规范
• Allow three to five seconds for these rapid ventilations
  这样做3 5秒以达到快速通气的目的。
• Mechanical ventilation for acute severe bronchial asthma
  应用机械通气治疗危重哮喘13例临床分析
• Specification for tank vent flame arresters
  油罐防火通气孔规范