The yieldable thermometric instrument being allowed to use in deeper point is studied and manufactured on the basis of the spontaneous combustion rule of ground coal storage pile.

 
  • 在探討地面儲煤堆自燃規律的基礎上,研制出可伸縮深基點(diǎn)測溫儀表,并應用于大同局煤峪口礦露天儲煤場(chǎng),得出煤堆自熱層、自燃層厚度值及大同煤儲煤堆自燃的內在特性。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan