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Various ventilation methods are discussed and the necessity to use feed-forwards traffic forecast ventilation control is put forward. Autoregressive Moving Average process is implemented to forecast traffic volume. Fuzzy intelligent control strategy is developed to address the problem that tradition control methods could hardly response to cross-river tunnel contaminant in time.

在分析了不同通风控制系统下,前馈预估控制对隧道通风控制的必要性;提出了运用自回归滑动时间序列模型对隧道交通流预测的方法;反馈控制无法及时响应隧道污染物变化情况的基础上,采用模糊控制设计隧道通风控制策略。

Elementary discussion on ventilation mode of the power house of hydropower station in river channel;2. According to the State Standard of Indoor Air Quality GB/T18883-2002,the air pollutants in the passenger car cabin were measured,and the influence of temperature,the type of car,the time since the manufacture date and the ventilation mode on the air quality was evaluated.

5倍;车内污染物的质量浓度随时间延长不断衰减,约10 d后趋于稳定;发动机运转时客车内污染物质量浓度升高,车内的空气质量变差;自然通风与循环通风均可使车内污染物质量浓度迅速下降,但自然通风方式效果更好。

Kosta Ventilation Control System Fume Hood by direct measurement of the surface wind speed and constant surface wind speed to adjust the exhaust Fume Hood quantity of emissions so as to achieve the best effect.

Kosta通风控制系统通过直接测量通风柜的面风速并恒定面风速来调整通风柜的排风量,从而达到最佳的排放效果。

Environmental protection as if the ventilation equipment factory is twenty years engaged in specialized production PVC plastic products, ventilation exhaust treatment works, Fume Hood and other old business, the products with anti-corrosion, acid, high temperature, anti-aging and so on.

环保仿佛通风设备厂是二十几年从事专业化生产全塑PVC产品、通风废气处理工程,通风柜等的老企业,所生产的产品具有防腐、耐酸碱、耐高温、抗老化等特点。

To prevent epidemical disease prevalence caused by microorganisms in indoor air, a study was carried out to investigate the effect of ventilation, peracetic acid and ozonization on microorganisms reduction in the indoor air within a campus. The experimental results indicated that ventilation was an effective measure in reducing indoor air microorganisms with economy and simple operation.

为了防止室内空气微生物导致的传染病发生,对某校园室内的空气进行通风、过氧乙酸和臭氧灭菌降低微生物的实验研究结果表明,通风可以有效地降低室内微生物的浓度,是最为经济和易行的措施;过氧乙酸灭菌效果好,持续时间较长,可在不易实施通风情况下采用过氧乙酸灭菌;臭氧具有迅速杀菌的效果,使用时要与人保持一定距离,最好超出 1m。

Methods for ventilating a building may be divided into mechanical/forced and natural types.

建筑物内的通风可以分成机械通风和自然通风两种。

In addition, the mea-sures to lower down the contamination at the inlets are expounded. The state-of-the-art about the recent development innatural ventilation in European countries is related. Building Service' s Engineers and Architects are gradually acceptingthe energy efficient ventilation ideas.

为了确定通风的使用效果,欧洲对很多建筑物做了现场调查测试研究,高效通风的理念逐渐为建筑师和建筑设备工程师所接受,多元通风技术在欧洲也有日趋增多之势,它避免了建筑全年运行空调系统所带来的成本、能源的过度消耗和导致的环境问题。

Effect of sulfurization time, water content, oil as well as sulfur on spontaneous combustion of iron sulfide is investigated on the same sulfide formed from Fe2O3. It indicates that long sulfurization time, some oil, sulfur as well as good ventilation condition could accelerate oxidation and temperatures rise, but uncertain water content and poor ventilation condition lessen the spontaneous combustion tendency.

以Fe2O3的硫化产物为典型样品,研究了硫化时间、水分、油品、硫及通风条件对硫化铁氧化升温特征的影响,结果表明,硫化时间长,适量的油品和硫以及良好的通风条件能够加速硫化铁升温过程,而一定的水分及不良的通风条件则降低了硫化铁的自燃倾向性。

The methods of deceasing energy consumption for building by using nature ventilation through CFD simulation and experiment are proposed.

设计较好的水电站通风和高大厂房的通风的主要手段就是利用自然通风技术,并且得到了实践的检验。

It was found that the rolling-up vent had a higher ventilation rate (up to 2.32 times) than the continuous roof one, the better ventilation (more than 60% at the wind speed of 3.0 m/s) could be achieved with vents near the ridge of the roof instead of near the gutter, and the obvious reduction (18%-22% at the wind speed of 3.0 m/s) in the rate values when an insect-proof screen was fitted to it, in the case of full opening of the vents.

研究表明,在试验条件下,当通风口完全打开时,卷膜通风系统比天窗开启式具有可高达2.32倍的通风率;在风速为3 m/s时,位于拱顶脊部的通风口比位于拱底部的通风率大60%;在同样条件下,防虫网可把通风率减少18%~22%。

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Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严,以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆,把帆卷起,系住。

Therefore, positively advances the interest rate marketability reform is one of current our country finance reform important tasks.

因此,积极推进利率市场化改革是当前我国金融改革的重要任务之一。