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Such trunkways or tunnels shall not extend through the first subdivision bulkhead abaft the collision bulkhead.

该等围壁通道或隧道不得延伸至穿过防撞舱壁之后的第一个分舱舱壁。

By adjusting the etch time and the concentration of acid in the process, different shapes of the tunnels can be obtained.

在栅极制作过程中通过改变酸液刻蚀的时间和浓度，可以腐蚀出不同形状的小孔。

Metal corrosion in sulfuric aeid edw point is a common and very serious harm go the corrosion forms, in a wide range of production in all aspects of life, especially in some specific process unit operation equipment middle.low-temperature corronsion dew point in the general industrial rurnace, boiler, fuel saving edvices, air preheater, heat exchangers, tower refrigeration systems, dust, garbage incineration furnace, sintering furnace flue and chimney acid plant and the wind tunnels of hypothermia sife, yes containing gurnace flue and chimney acid plant and wind tunnels of hypothermia site, yes containing acidic gases produced by the condensation of cold treatment from the local cold drinks along with the liquid in the device, lesding to a very serious material corrosion.

该下载资料由本站会员上传，如果侵犯了您的权力，请通知我们，将立即删除！摘要金属材料的硫酸露点腐蚀是一种常见的，危害十分严重的腐蚀形式，广泛的发生在生产生活的各个方面，尤其发生在一些特定的过程单元操作设备中间。低温露点腐蚀一般发生在在工业加热炉、锅炉、燃料节省器、空气预热器、热交换器、塔顶冷凝系统、除尘器、垃圾焚烧炉、烧结炉、烟道，烟囱及酸厂的引风管道等的低温部位，是含酸性的气体经由该产遇冷冷凝下来的冷饮液局部地随着于设备上，从而造成对材料极严重的腐蚀。

On basis of the features of Yuanliangshan tunnel, jet ventilation technology has been successfully used in the construction of the tunnel and the calculation method for the air volumes of construction jet ventilations are improved. The calculation method for the air volumes of construction jet ventilations is not only suitable for gas tunnels consisting of twin tubes, but also suitable for long tunnels with ancillary adits and large-scale underground structures.

在圆梁山隧道的施工通风中，结合该隧道特点，成功实施了射流通风技术，并进一步完善形成了施工射流通风的风量方法，该方法不仅适用于有平行双孔的瓦斯隧道，同时也可在有辅助坑道的长大隧道或者大规模地下空间的施工通风中推广应用。

Based on the modeling and analysis of the CO_2 concentration in the tunnels and underground railway with shielding doors,points out that,in winter,with air exhausters on the top of the tracks and at the bottom of the platforms along the railway stations closed and piston air functioning only,the temperature condition can,but the fresh air can not,be satisfied in the tunnels during morning and evening rush hours.

通过对有屏蔽门时地铁隧道和车厢内CO2浓度的建模与分析指出，在冬季如关闭地铁线各车站轨顶站台底的排风机，仅依靠活塞风，在早晚高峰时期能满足隧道中的温度要求，但不能满足列车内人员的卫生要求。

With the increasing in extra-long tunnels and transportation loads,fire risk in tunnels is also increasing.

随着长大隧道的不断涌现，交通量的日益增加，隧道内发生火灾风险的概率也随之上升。

The accident rate was as low as 0.09(injury accidents per mill vehicle kilometer per year). The rate was highest in tunnels with steep gradients and where annual average daily traffic was lower than 1 500. Only three fires have been recorded in Norwegian subsea tunnels.

其事故发生率极低，只有0.09(每年每一百万车辆每公里发生的事故次数)，最高的事发率是在陡坡的年平均日通车量低于1500的隧道中。

However, it is one of the topics worthy of study that how the results of GPS survey that is based on the normal line can be converted to be compatible with the traverse survey inside tunnels that is based on the plumb line, so as to minimize the influence of the plumb line deflection on the transverse breakthrough accuracy of tunnels.

但是，如何将以法线为准的地表GPS成果改换到与以垂线为准的洞内导线测量相符合，从而解决好垂线偏差对隧道贯通精度的影响，是一个值得探讨的问题。

The lining pressures and internal forces of the optimized crosssections of doublearch tunnels are distributed almost symmetrically and are comparable to those of separate tunnels.

连拱隧道优化断面衬砌压力和内力分布基本对称，与分离隧道相接近，是一种合理的连拱隧道构筑方法。

In order to obtain the fire parameters of cable tunnels and study the time-dependent and spacedependent distribution of the air temperatures and fire smokes inside the tunnels, cable tunnel model is established and fullscale fire simulation is made by means of FDS developed by NIST (National Institute of Standards and Technology). The distribution pattern of the smoke density, oxygen density and temperature are obtained by means of processing and analysis of the experiment data, so as to provide some effective methods for fire-fighting, rescuing and escaping. Furthermore, some suggestion is made on fire prevention.

为了获取电缆隧道火灾参数，研究隧道内空气温度及火灾烟雾浓度随时间、空间的分布情况，利用NIST (美国国家标准和技术研究院)研发软件FDS，建立电缆隧道模型，进行全尺寸火灾模拟，通过实验数据处理和分析，给出了电缆隧道发生火灾时烟气浓度和氧气浓度以及纵向温度的变化规律，为现实火灾救援灭火、人员逃亡提供一些有效方法，并对火灾预防提出一些建议。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。