gas occurrence

英 美
  • 瓦斯赋存
  • gas n.煤气;气体;汽油;空话vt.使吸入毒气;毒(死);给...加汽油vi.空谈;加汽油
  • occurrence n.发生;事件;出现
    1. The gas occurrence rule is the techno-basement of the study on the gas emission rule and gas harm harness.
      煤层瓦斯赋存状态是研究矿井瓦斯涌出规律和瓦斯灾害防治的技术基础。