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- Secondly, the piston wind affects" regularity on the platform, the underground hall, the stair and the passageway with various time and train conditions. 对比了不同时段活塞风对区间、活塞风井和迂回风道速度场和温度场影响的累积效果。
- In accordance with different positions of high speed train in tunnel,unsteady flow formulas for the evaluation of piston wind velocities in tunnel and aerodynamic drag on trains have been established in this paper. 针对高速列车在隧道中不同位置处行驶时,本文分三种情形建立了非恒定流活塞风计算公式,并建立了适用于非恒定流的类似于原朝茂公式的空气阻力计算方法。
- It is very complex to calculate the aerodynamic drag of high-speed train running in railway tunnel with multi -shafts . And the difficulty is to calculate the velocity of piston wind. 在高速列车空气阻力计算中,多竖井隧道的列车空气阻力计算比较复杂,其难点在于多竖井的活塞风计算。
- Based on the analysis of fire load of subway platform and sub-train and by using numerical simulation, the characteristics of subway train fire under the effect of piston wind was studied. 为了研究活塞风对站台气流分布的影响及其动态特性,本文在对国内外地铁发展和研究进行简要回顾的基础上,对哈尔滨拟建地铁岛式站台和侧式站台进行了二维数值模拟分析。
- Influence Factors of the Piston Wind in Single Line Tunnel 无竖井单线隧道活塞风影响因素分析
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- The wind whirled the dead leaves about. 风吹得枯叶在四处回旋。
- The boat heeled over in a strong wind. 船在强风吹袭下倾侧了。
- All the apprentices rushed to help fit the piston. 徒工们都跑过来帮助装活塞。
- The shutters thumped the wall in the wind. 在风中百叶窗砰砰地碰在墙上。
- Get lathe No.9 set to turn the new piston. 把九号车床调好来车这个新活塞。
- The piston seems ok. Maybe something else is wrong. 活塞似乎没问题。可能别的什么东西坏了。
- She was like a narcissus trembling in the wind. 她像一株在风中摇动的水仙。
- Still, it's an ill wind; you will have an unexpected holiday. 不过,这也并非完全的不幸,你会享受到一次意外的休假。
- The north wind set them shivering. 北风吹得他们浑身打颤。
- The pitiless north wind blew for weeks. 凛冽的北风一连刮了几个星期。
- His hat was whirled away by the wind. 他的几十被风吹得旋转飞走。
- The yacht was scudding along before the wind. 那只帆船正乘风笔直疾驶。
- They set sail with the first fair wind. 他们一有顺风就扬帆起航。
- The candle was blown out by the wind. 蜡烛被风吹灭了。