pit prop

常見(jiàn)例句

• A fork waveguide model is proposed and the mode matching and multi-mode network technique are used to analyze the transmission characteristics of rectangular tunnel with metallic pit prop.
  針對(duì)矩形巷道中由于金屬支護(hù)立柱的存在而帶來(lái)的分叉不連續(xù)問(wèn)題,提出用分叉波導(dǎo)模型并用模式匹配法和多模傳輸理論分析傳輸特性。
• a pit prop(= one used in a coal mine)
  煤礦坑木
• The conservation of pit prop at ancient copper mine
  古銅礦遺址地表坑木的保護(hù)
• The timber is used for construction, poles, vehicles, pit props, railway sleepers, and wood fiber.
  木材用于建設(shè)，桿，車輛，具洼點(diǎn)的支柱，鐵路睡眠者和木頭纖維。
• Effect of Metallic Pit Prop on Transmission Characteristics in Tunnel
  金屬支護(hù)立柱對(duì)巷道無(wú)線傳輸特性的影響
• The children were playing in the sand pit.
  孩子們?cè)谏晨又型嫠！?/li> 返回 pit prop