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The results show that for the single-track shield tunnel in actual projects,the longitudinal ventilation velocity of 2.6~2.9 m/s can effectively prevent smoke from counter flow at a heat release rate of 10 MW;when the tunnel sector on fire with a longitudinal velocity of 2.9 m/s and the unfired tunnel sector with the velocity of 1~1.5 m/s from both ends,there is an air flow with the velocity of 6 m/s ...

模拟分析得出,对于地铁实际工程中的单线盾构圆形隧道,在10 MW火灾强度下,着火区间隧道内2.6~2.9 m/s左右的纵向风速可以有效阻止烟气发生逆流;在着火区间隧道2.9 m/s的纵向风速下,未着火区间隧道两端对送送风速度为1~1.5 m/s时,联络通道内有风速为6 m/s左右的气流流向着火区间隧道,可有效抑制烟气通过联络通道向未着火区间隧道蔓延,保证人员的安全疏散。

Strengthening contributions of " phase are maximal in the rolling and transverse directions, minimal in the 45 direction, which means that contribution of " phase to anisotropy of alloys is consentaneous with that of textures.

相在纵向和横向的强化贡献最大,而在45°方向的强化贡献最小,即与织构的作用一致;T_1相的强化贡献则在纵向最小,在横向最大,在45°方向较大,即与织构的作用相反。

This slide used data collection during Rolling Wheel Deflectometer tests where the PPS is scanning longitudinally to demonstrate the feasibility to construct a longitudinal profile with resorting to an accelerometer to establish an inertial reference.

此页使用来自Rolling Wheel Deflectometer 测试的数据。此测试中,PPS借助加速度计设定惯性基准,并作纵向扫描以展示构造纵向轮廓的灵活性。在25厘米中收集的14次扫描被转换到三度自由上:等距的扫描控制收集,旋转和摇摆,垂直转换。

This paper emphasized on the strength testing of paper-bag which was produced by Foshan Sanshui KelunPaper.Inc. The test was done according to the Chinese Standards(GB/T453—2002、 GB/T450—2002、GB9774—2002 etc.).It showed that , the average CD ensile strength of a single paper is 2.96KN/m, above the normal value of 2.0 KN/m; The average MD ensile strength of a single paper is 3.88 KN/m, above the normal value of 3.8 KN/m; The combined CD ensile strength is 7.88 KN/m, above the normal value of 6.0 KN/m; The combined MD ensile strength is 11.91 KN/m, above the normal value of 11.4 KN/m.

本文针对佛山三水科伦纸业公司生产的纸袋进行了强度方面的测试,根据国家标准(GB/T453—2002、GB/T450—2002、GB9774—2002等),借鉴厂内已有的检测方法,测出了该厂生产用纸单层的横向抗张强度的平均值为2.96 KN/m,高于行业经验值2.0 KN/m;纵向抗张强度平均值为3.88 KN/m,高于行业经验值3.8 KN/m;组合横向抗张强度为7.88 KN/m,高于行业经验值6.0 KN/m;组合纵向抗张强度为11.91 KN/m,高于行业经验值11.4 KN/m。

Therefore, faced with pressure from lengthways and landscape orientation, it is necessary for port enterprises to develop lengthways and landscape orientation collaboration strategy research and apply it to practice.

因此,面对横向和纵向上的竞争压力,港口企业有必要在提高自身软、硬件条件的基础上,综合考虑横向和纵向上的各种因素之间的相互影响,开展&合纵连横&策略的研究并付诸实施。

In 1999, Struijk found that the myelinated nerve could be excited by transverse field induced by pulsed magnetic stimulation without the effect of tissue unhomogeneities and bends in the nerves.

因此,在近几年的神经磁刺激研究中,也局限于讨论感应电场纵向分量的作用,以纵向场负的一阶导数极大值作为刺激方式的选取及线圈改进的衡量标准。

Diode pumped monolithic nonplanar ring laser has the advantages of compactness, reliability and high efficiency.

激光二极管抽运的单块非平面环形腔固体激光器具有结构稳固、效率高等优点,在一定的纵向磁场作用下,可形成单向行波振荡,纵向抽运时就可得到较高功率的单频输出,有广泛的应用前景。

Based on the finite element method, a fresh and unique type of footbridge, a papilionaceous partial tied arch footbridge, was analyzed. The influences to the whole structure's stress behavior, displacements, vibration periods and mode shapes under parabola and arc arch axis were discussed. Different selections of support forms, such as longitudinal slide or longitudinal hinge, led to different behaviors on structure.

针对一种新型而特殊的蝶式部分系杆拱步行桥,基于有限元数值分析比较抛物线形拱轴线和圆弧形拱轴线对整个结构受力、变形、周期和振型的影响,揭示选用纵向滑动支座与纵向不动铰支座时给结构性能带来的不同结果,对结构拉索张拉力的控制给出建议。

The emergence of adult started to occur in the last ten days of May and would last to the first ten days of July, and then went into a stage of rampantly damaged to the bamboos. The adults could mate multi-time each other in all life except the dormancy.

卵和幼虫在横向上的聚集性强于其在纵向上的聚集性,而蛹和成虫在横向上的聚集性则明显弱于其在纵向上的聚集性,种群在0-3 m尺度内的分布没有明显规律性。

Structure characteristics of the shell-side of the shell-and-tube heat exchanger and laws of fluid flow and heat transfer are researched deeply, and ""sideling flow"" in the shell-side is researched especially.

相对于现有壳程流体横向流、纵向流和螺旋流的流动状态,换热器壳程流体的倾斜流动状态兼有壳程流体横向流动和纵向流动所具有的传热和阻降性能的双重优势,从而发展了管壳式换热器壳程结构设计理念。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。