The web paper is inputted by Mill Roll Stand, and after heated and regulating the moisture by the pre-heater, the paper is put into the Single Facer for shaping and then conglutinating with another top paper to form a single corrugated board. The single corrugated board is then transmitted by the overhead bridge conveyor to multiple heater to be reheated, after this the paper is to double facer for being heated and jointed, herein a continuous corrugated board is formed.

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Our country firstly put forward such design principle of Qinghai-Tibet railway engineering as "lower temperature actively, reduce the heat into the subsoil, and assure the heat stability of frozen earth for the quality stability of construction", creatively adopt such corresponding measures of frozen earth construction problem as: for the poor frozen earth developing section, line should avoid as possible;for the geology of ice at high temperature and unstable frozen earth zone, the method of bridge instead of subgrade shall be adopted;in subgradeconstruction, such facilities as heat stick, rubble ventilation subgrade , rubble ventilation berm, ventilation pipe subgrade and laying heat preservation board etc shall be adopted to raise the stability of frozen earth subgrade;during the excavation of bridge, culvert , foundation pit and scouring prevention trough, creatively adopt single-tooth knapper and solve the problem of frozen earth excavation;during the construction of bridge and culvert, durable concrete and three-step maintenance method are adopted to assure the outside and inside beauty of structure.

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bare board：裸板

)內(nèi)部電阻值與頻率的示意圖 34圖3.3 非線性的電壓調(diào)節(jié)模組(VRM)示意圖 35圖3.19 具有通道的測試板(bridge board)與裸板(bare board)的架構(gòu)圖 44圖3.20 具有通道(bridge)的測試板量測圖 45圖3.21 裸板(bare board)的量測結(jié)果圖 46

bridge crane：橋吊,裝卸橋

BOARD PALNK 木版 | BRIDGE CRANE 橋吊,裝卸橋 | BUNKERING TANKER 供燃料船

bridge boat：浮橋墩船

bridge board 橋板 | bridge boat 浮橋墩船 | bridge boat 浮橋躉船