pit prop
常见例句
- 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.
针对矩形巷道中由于金属支护立柱的存在而带来的分叉不连续问题,提出用分叉波导模型并用模式匹配法和多模传输理论分析传输特性。 - a pit prop(= one used in a coal mine)
煤矿坑木 - The conservation of pit prop at ancient copper mine
古铜矿遗址地表坑木的保护 - The timber is used for construction, poles, vehicles, pit props, railway sleepers, and wood fiber.
木材用于建设,杆,车辆,具洼点的支柱,铁路睡眠者和木头纤维。 - Effect of Metallic Pit Prop on Transmission Characteristics in Tunnel
金属支护立柱对巷道无线传输特性的影响 - The children were playing in the sand pit.
孩子们在沙坑中玩耍。 返回 pit prop