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- 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. 針對矩形巷道中由于金屬支護立柱的存在而帶來(lái)的分叉不連續問(wèn)題,提出用分叉波導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
- The timber is used for construction, poles, vehicles, pit props, railway sleepers, and wood fiber. 木材用于建設，桿，車(chē)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 金屬支護立柱對巷道無(wú)線(xiàn)傳輸特性的影響
- The children were playing in the sand pit. 孩子們在沙坑中玩耍。
- Effects of the metallic pit prop on the electromagnetic wave cutoff frequency in the rectangular tunnel 矩形隧道中的金屬支護立柱對電磁波截止頻率的影響
- Many coal-miners were imprisoned in a pit accident. 在一次塌方事故中，許多礦工被壓在了井下。
- Prop the door open with a brick. 用磚塊撐門(mén)使其開(kāi)著(zhù)。
- The government refuses to prop up inefficient industries. 政府拒絕補貼效益不佳的行業(yè)。
- The managers want to pit the champion against John. 經(jīng)理人想讓冠軍與約翰比賽。
- The pit - prop fell on his head and knocked him out. 坑木掉在他頭上，把他打昏過(guò)去。
- The managers want to pit the champion against an unknown. 經(jīng)理們想讓冠軍與一名未成名的選手比賽。
- It is not the government's policy to prop up declining industries. 資助不景氣的工業(yè)不是政府的政策。
- A hole or pit, especially one in a road surface. 坑洞尤指路面上的渦穴或坑洞
- The government does not intend to prop up declining industries. 政府無(wú)意扶持不景氣的企業(yè)。
- Mr. Helton was the hope and the prop of the family. 希爾頓先生成了一家的希望和支柱。
- Having the form of a thin plate or lamella. 薄片形的有薄片或鰓瓣狀形體的。
- Prop the gate open with a brick. 用一塊磚支著(zhù)大門(mén)讓它開(kāi)著(zhù)。
- There is not lamella in the ingot. 鋼錠沒(méi)有明顯的片層狀組織。
