ventilation section 中文意思是什麼
ventilation section
解釋
通風區段- ventilation : n. 1. 通風，換氣（法）；通風裝置。2. 發泄，發表；（問題的）公開討論；訴諸輿論。
- section : n 1 （外科、解剖的）切斷；切割；切開。2 【外科】切片，【金相】磨石。3 （果子的）瓣。4 【數學】截...
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On this basis, puts forward a kind of scheme and idea of displacement ventilation using in high - speed railway air - conditioned car, makes numerical simulation on the flow field of the car and calculates the pmv value of the typical section
在此基礎上，提出了下送風用於高速列車空調的一種方案和構想，並對設計方案的流場進行了數值模擬與典型斷面的pmv值計算。 -
Adopting economical ventilation cross - section to improve economic benefit
採用經濟斷面提高經濟效益 -
Ventilation for buildings. sheet metal air ducts and fittings with rectangular cross section. dimensions
建築物通風.矩形截面薄板金屬送氣管和配件.尺寸 -
Ventilation for buildings - sheet metal air ducts with rectangular section - requirements for strength and leakage ; german version en 1507 : 2006
建築物通風.矩形面薄板金屬送氣管.強度和泄漏要求 -
Considering that the characteristics of our country ' s highway tunnels are always of long spans, tabular and of various geometry, by means of thorough analysis of the different problems existed in the design of support structures of the tunnels at present, this paper pays special attention to the two key problems, optimization method of form selection of structural section of the tunnel as well as the stability and bearing capacity of the support structures, in the design of the long and large tunnel on high - class highway, introduces the simplified complex - form optimum method in the structure optimization theory, discusses the optimum design model of lining section of highway tunnel with satisfying demands in building clearance, ventilation and load conditions, puts forward an optimization method of form selection of three different kinds of lining sectional forms ( i. e. single - center circle, three - center tabular circle and three - center sharp circle ), establishes a complete set of systematic optimum design the ory and method of long and large tunnel on high - class highway, develops the corresponding computer software used on the planned xuefeng mountain highway tunnel on shaoyang to huaihua expressway in hunan province for optimization of form selections of the structural sections, and obtains a series of relatively reasonable structural design parameters
本文針對我國公路隧道多為大跨度、扁平、幾何形狀呈多樣化的特點，通過深入分析目前隧道支護結構設計中存在的各種問題，抓住高等級公路長大隧道設計中隧道結構斷面的優化選型及隧道支護結構的穩定性與承載能力兩個核心問題，引入結構優化理論中的簡易復合形優化方法，深入探討了滿足建築限界、通風條件、受力狀態約束等條件下公路隧道襯砌斷面優化設計模型，提出了三種襯砌斷面形狀（單心圓、坦三心圓和尖三心圓）的優化選型方法，建立起一套完善的高等級公路長大隧道的系統優化設計理論與方法，並開發出相應的計算機程序，用於擬建的上海至瑞麗國道主幹線湖南省邵陽至懷化高速公路雪峰山長大高速公路隧道的結構斷面優化選型，得出了一系列較為合理的支護結構設計參數。 -
In the second section a ventilation control system based on fuzzy control theory is proposed
本文第二部分提出了基於模糊控制理論的隧道通風控制系統。 -
Choicing suitable configuration, ventilation installation and controlling the unevenness of flow surface at the sudden enlargement section after the tainter gate, this emptying tunnel may avoid or mitigate cavitation
在工作閘門區突擴跌坎處，選擇合適的體型及通氣設施並嚴格控製表面不平整度，可達到防止或減小空化的目的。 -
Ventilation for buildings. sheet metal air ducts and fittings with circular cross section. dimensions
建築物通風.圓形截面的薄板金屬空氣導管和管接頭.尺寸 -
Ventilation for buildings - sheet metal air ducts and fittings with circular cross section - dimensions
建築物通風.帶有環形十字截面的薄板金屬空氣導管和配件.尺寸 -
Ventilation for buildings - sheet metal air ducts and fittings with rectangular cross - section - dimensions
建築物通風.帶有矩形十字截面的薄板金屬空氣導管和配件.尺寸 -
The outer section of the tent is large enough to shelter both your luggage and cushion, and has two slit windows to facilitate ventilation
這件大斗篷一方面是帳篷外帳，然而打開通風窗縫 -
To enhance environmental hygiene, all poultry stalls are operated separately from other stalls with dedicated access and ventilation systems. each poultry stall has its own retail section, scalding room and live poultry section
家禽檔區設有特定的通道和獨立的通風系統，而每個家禽檔亦劃分為零售區屠宰室及活家禽區。 -
A zoned multistage ventilation system in exhaust section
回風側分區多級機站通風系統的應用研究 -
The air amount calculation of long distance ventilation at one times blast in drifting big section rock roadway
大斷面全巖開拓巷道一次起爆長距離通風風量計算
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