sanitary protection

英 美
  • n.卫生防护;ph
    用作名词 (n.)
    1. The discharge of uncontrollable ammonia was determined by the antiinferenee of ground consistency.A practical and feasible health protection zone was determined.
      采用地面浓度反推法,计算出氨的无组织排放量,从而确定出可行的大型氮肥厂卫生防护距离。