查询词典 wind tunnel

Sample to the value of gas emission of every tunnel once, the whole wind network will be sampled once. For a kind of sample, we will equipoise the gas flow in wind network.

对每一条巷道瓦斯涌出量值进行一次抽样，实际就是对整个风网进行一次抽样，对整个风网的一次抽样在风网中进行瓦斯流平衡，从而得到每条巷道的瓦斯流流量值。

With the computing software MATLAB,the authors make a numerical evaluation of the velocity of the piston wind in an interzonal tunnel,analyze the influences of the train speed, the length of the tunnel, the length of the train and the blockage ratio to the piston wind.

隧道中活塞风速度的计算方法主要有两种：按恒定流计算和按照非恒定流计算。列车在隧道中的行驶所形成的活塞风实际上是随时间而变化的。

The first step of simulation method is to establish the one-dimension parabolic partial differential advection diffusion equation that was used to describe the mass transportation model of air-pollution distribution as a block program model of the controllable plant. Then, applying the Fuzzy logic theory to operate tunnel jet-fans and control the tunnel wind quantity and adjust the wind average velocity would not let the air-pollution concentration over the standard safety value too much.

模拟方式首先将常被用以表示隧道内空气污染物质传理论模式之一维向平流扩散抛物线型偏微分方程式建构成一组可控制对象的方块程式模拟模型，再运用模糊逻辑理论模拟控制喷流式通风机之运转风量来调节隧道内平均风速以控制隧道内空气污染物浓度不至於高过标准安全值太多。

It is found that: the standard Model can be used to predict flows at the station and resultant velocity and temperature field under some reasonable presumptions; the impact brought by stopcock wind is variable according to the different tunnel structures; the temperature of is related with the distribution of heat load; the VAV system has advantage in energy saving, but when the air volume reduced to a certain degree, we should consider the alteration of rising the temperature of supply air, and increasing the quantity of it.

研究表明：采用合理的假设，标准的湍流模型能够较为准确地模拟和预测地铁站台的温度场与速度场；活塞风对站台的影响随区间形式的不同而不同；空调送风温度的设定与负荷的分布情况有密切的关系；针对站台空调季全天的负荷变化，VAV环控方案可以达到节能的目的，但在风量过小时，适当考虑采用提高送风温度，加大送风量的方法进行局部的调整。

Compared with the traditional tunnel ventilation system, this system can greatly save investment and avoid the increase of running expenses arising from the greater wind pressures for ventilation fans.

与传统的系统方案相比，该系统方案可以大量节省初投资，并可以避免因风机全压选择偏大所带来的运行费用的增加。

Standing in front of these oil paintings of Feng Jincao , as if we were flying through the time tunnel. Whirring wind slipped by , clouds changed their shapes quickly, and continual changing views blurred and danced before our eyes. We trace the jumping-of point of human being in a diverse direction of time's growth. Those brilliant rays of history frozen in memory reflect on our dress, and the root of our culture shows loving care for modern people's sprit and life by Feng's painting.

站在冯劲草的油画作品面前，我们仿佛正在穿越时空隧道，耳边是呼呼的风声，眼前是千层万叠的烟云和不断模糊变幻的视野，我们逆向时间轴的速度要追回人类逝去的起点，那些凝结在记忆里的历史光芒斑驳地映在我们的衣杉上，我们的文化之根正通过冯劲草特殊的油画表达方式，关怀着当代人的精神和生活。

Standing in front of these oil paintings of Feng Jincao,as if we were flying through the time tunnel. Whirring wind slipped by, clouds changed their shapes quickly, and continual changing views blurred and danced before our eyes. We trace the jumping-of point of human being in a diverse direction of time's growth. Those brilliant rays of history frozen in memory reflect on our dress, and the root of our culture shows loving care for modern people's sprit and life by Feng's painting.

前言 站在冯劲草的油画作品面前，我们仿佛正在穿越时空隧道，耳边是呼呼的风声，眼前是千层万叠的烟云和不断模糊变幻的视野，我们逆向时间轴的速度要追回人类逝去的起点，那些凝结在记忆里的历史光芒斑驳地映在我们的衣杉上，我们的文化之根正通过冯劲草特殊的油画表达方式，关怀着当代人的精神和生活。

Putter Suspended orbit high temperature tunnel kiln (PCS fiber pre-oxidation tunnel kiln), a microcomputer-15 points in 15 high-precision temperature control procedures, different vacuum sealing fan, the wind varies from district to district, stainless steel, and stainless steel track after suspension

高均温悬浮轨道推杆式隧道窑（PCS纤维预氧化隧道窑），采用十五台微电脑分十五区高精度程序控温，不同真空密封风机，各区不同不锈钢风道，经过悬浮轨道和不锈钢网状料盘进行完整的热风循环。

The characteristics of flow fields in annuluses between moving and static walls formed in train running through a tunnel is the important content of tunnel aerodynamics and also one of the main bases to study and solve the problem of the piston wind in tunnels.

列车通过隧道时，列车表面与隧道表面之间的环隙流场特性，是隧道空气动力学的一个重要内容，也是研究和解决隧道活塞风的主要依据之一。

The large amplitude rolling motion test was conducted in FL-8 low speed wind tunnel of CARIA.

在气动院FL-8风洞中，采用旋转流场下单自由度振荡机构进行了旋转流场下大幅滚转运动的动态气动特性实验研究。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。