查询词典 wind tunnel

Beginning with the analysis of the basic flow pattern and discharge characteristics of the horizontal vortex and inner energy dissipating tunnel with inlet shaft, the expressions of velocity distributions in the tunnel have been supposed and established.

本文从分析图 1所示的竖井进流水平旋转内消能泄水道的基本流态与泄流量变化规律出发，对该种泄水道的流速分布提出假定，并给出具体表达形式。

Because of ventilating requirement of cross-ocean tunnel, especially long distance cross-ocean tunnel, ventilating shaft should be set in the sea.

长距离深海跨海沉管隧道，为满足隧道内运营通风的要求必须在隧道中部设置通风竖井。

The left and right tunnel will influence each other in construction of closely -spaced tunnel, it is key to success that middle rock body is reinforced.

小净距隧道由于间距较小，左右隧道在施工过程中将相互影响，所以双洞之间的中间岩体加固是隧道施工成功的关键。

The use of rock geomechanics classification method to increase the tiger to the right tunnel surrounding rock classification, the reference and evaluation criteria while rock classification method and the BQ were varied, but the same number of factors can be integrated indicators of scientific objective of rock classification for the tunnel to provide an important basis for the design and construction.

利用岩体地质力学分类方法对老虎岭隧道右幅进行围岩分类，其参考因素和评价标准虽然与BQ围岩分级方法不尽相同，但同样能够综合多因素综合指标，对围岩进行科学客观的分类，为隧道的设计施工提供重要依据。

Firstly in the paper the research of hydraulic characters and the optimize of structure have being carried out on the four bigger design schemes of permanent internal dissipation discharge tunnel reconstructed from the right banks diversion tunnel of Gongboxia Power Station with a method of theoretical analysis combined with test comparisons. On this basis , two form swirling flow internal dissipation schemes, vertical and horizontal axis are recommended to the construction unit of the station as the schemes to be selected next.

本文采取理论分析与试验比较相结合的方法，首先对黄河公伯峡水电站右岸导流洞改建为永久式内消能泄洪洞的四个较大设计方案进行了水力特性的试验研究与体型优化，在此基础上，向建设单位分别提供了竖井旋流内消能的推荐方案与水平旋流内消能的推荐方案。

In this paper, commonly used "highway tunnel design specifications"(JTG D70-2004) in the BQ surrounding rock mass classification methods and geomechanics classification method on the highway翻坝increase the tiger to the right tunnel surrounding rock classification, and the following major conclusions

本文结合国内常用的《公路隧道设计规范》（JTG D70—2004）中BQ围岩分级方法和岩体地质力学分类方法对翻坝高速公路老虎岭隧道右幅进行围岩分级，并得到以下主要结论

The flood discharging structure consists of one spillway, one spillway tunnel at left bank and one spillway tunnel at right bank.

泄洪建筑物由溢洪道和左右岸各1条泄洪隧洞组成，泄洪以溢洪道为主，泄洪隧洞为辅。

The dimensions of diversion tunnel of Xiluodu Hydropower Station takes lead all over the world because the excavation sizes of gate shaft of right diversion tunnel was broad,the construction schedule is urgent and the construction is interfered frequently by outside factors.

溪洛渡水电站导流洞工程规模居世界前列，其右岸导流洞闸门竖井开挖断面尺寸大、工期紧张、施工干扰大，充分利用竖井断面大、作业面宽的特点，采用了类似于洞外边坡开挖支护的方法开挖支护施工，使工期提前1.5个月，实现了竖井开挖快速施工。

Pit exploration project, including the type of the tunnel is as follows: pit exploration projects in the main role is available for geological personnel to enter the tunnel, direct observation and study of geological structure and ore occurrence, geological sketch and collecting rocks, ore samples.

坑探工程的主要作用是可供地质人员进入坑道内直接观察研究地质构造和矿体产状，进行地质素描和采集岩、矿样品。

To analysis the economic effect of using mycorrhizal seedings for production of muskmelon in plastic net house and PE sheet tunnel, the net incomes could increase up to about NT 22,700 dollars per 0.1 ha for plastic net house cultivation, while about NT 16,300 dollars per 0.1 ha for PE plastic sheet tunnel cultivation.

经济效益分析内生菌根菌应用在简易温网室洋香瓜生产上，每0.1公顷可增加净收益约22，700元，在PE塑胶布隧道洋香瓜，每0.1公顷则可增加净收益约16，300元。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"