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The United States and Canada use the British and now world standard gauge (4 feet, 8.5 inches wide) rails, while Russia uses Russian broad gauge (5 feet wide) tracks, a break-of-gauge , and this would have to be addressed.

美国和加拿大的铁路采用英国的也是现在的世界标准轨距（4英尺，8.5英寸宽），而俄罗斯的铁路采用俄罗斯宽轨距（5英尺宽），需要说明的是这样就形成了具有不同轨距的铁路。

Together with some basic knowledge of Linear Algebra, we prove that there exists a polynomial time algorithm for finding the shortest contractible cycle in an locally LEW-embedded graph. 3. By some results of Minor Theorem, we prove the crossing numbers of some circular graphs C(10,4), C(9,3), C(8,3) on the projective plane.

利用C.Thomassen在大边宽嵌入方面的工作，得到了局部大边宽嵌入图的一些性质，再利用线性代数的知识，证明了在局部大边宽条件下存在多项式时间算法可以找到一个图的最短可收缩圈。

On the basis of Ergun equation modified by Yoon and Kunii,the moving bed flow of solids with wide range particle in standpipe is calculated.

用Yoon 和Kunii修正的移动床厄贡方程，对宽筛分颗粒在立管中的流动进行了计算，计算结果与试验结果相一致，试验中发现，只要知道宽筛分颗粒的分级速度，便可用Yoon和Kunii修正的厄贡方程计算出宽筛分颗粒的料封能力。

We designed the multi-channel delay and pulse adjustment circuit based on CPLD providing a solution to fast gating timing and delay problems in large nuclear physic experiments. Its main function is accepting a negative NIM trigger input, and outputting a pulse with adjustable delay and width. Minimum step accuracy of the delay and the pulse adjustment is 10ns when the system frequency is 100MHz.

针对大型核物理实验中的符合测量、多路时间测量系统中的门控快定时信号等应用的需要，设计了一种多路延迟／脉宽调节电路，主要功能是对输入的多路快信号进行延迟和脉宽调节，支持NIM负信号输入和输出，在系统主时钟频率为100MHz的时候，延迟和脉宽调节的最小步进精度为10ns。

The ultra -- high -- frequency and ultra -- wideband partial discharge detecting methods is newly put forward. It is important for development of partial discharge de...

本文简明扼要地阐述了局部放电信号的物理本质和超宽频带检测原理，运用自行研制的超宽频带局部放电检测系统，研究了典型放电信号和干扰信号的本征特征，为进一步建立超宽频带局部放电检测指纹库、提高绝缘诊断的准确性奠定了基础。

Geodynamics disquisition of Tibetan plateau is the one of the most popular topics, developed countries ploughed into many funds in seismic exploration, it is advantaged using broad band seismic recorder in native seismic exploration and floor analyse seismic exploration, and it can offer constitution image with great depth, which provides approach to solve geodynamical problems.

宽频地震仪进行天然地震探测和层析地震探测的工作不仅在经济上合算，而且能够提供较大深度的构造图象，从而为解决地球动力学的基本问题提供了途径，论文分析目前国内外宽频地震仪器发展状况，设计了宽频地震仪，实现了地震数据及GPS信息的采集功能。

A method of designing antireflection coatings by the way of Rugate coatings was presented. The reason of difference of transmittance was analysed under the circumstanes of polarization and board angle incidence. Antireflection coatings of 1500-1600nm and incidence angle from 0° to 80° were designed. A new way of design was founded.

阐述了利用Rugate膜系理论设计宽角度减反射薄膜的方法，从理论上分析了在宽角度的情况下，偏振产生透过率不同的原因，模拟设计了光谱区在1500-1600nm波段，入射角从0度到80度宽角度减反射薄膜，探索出了一条新型膜系设计的途径，其优化结果是较为理想的。

And different kinds of curves also reflected different composes of sedimentary fragments and conditions of sediment: the curve in the shape of normality acute kurtosis reflects the sedimentary condition of sand which were blown by wind; the curve in the shape of skewness broad kurtosis means fragments formed by river; and the curve in the shape of saddlelike kurtosis shows a relationship with the condition of deep water.

不同类型的曲线反映了不同的碎屑物源组成和不同的沉积环境：在该剖面正态尖峰代表风沙物源，偏态宽峰代表河水物源，正态尖峰和偏态宽峰的叠加代表风沙物源与河水物源的混合，鞍状宽峰可能与深水环境有关。

The SeaWiFS will be the first ocean color satellite to follow the Nimbus-7 Coastal Zone Color Scanner, which ceased sending dataa in 1986 after more than seven years of operation.

宽视场海洋观测传感器是继工作了七年多，于1985年停止发送资料的Nimbus－7海岸带水色扫描仪之后的第一个星载海洋水色传感器，不像作为概念验证性实验的海岸带水色扫描仪那样，宽视场海洋观测传感器被设计用来提供充分精确的光合色素浓度资料以进行海洋初级生产力和生物地球化学定量研究［4］。宽视场海洋观测传感器将常规地每二日一次提供全球复盖资料。

The suitability of the different processes was analyzed by observing the weld appearance,studying the microstructure and measuring the mechanical properties of the joint.The results show that a favorable weld can be obtained under the suitable parameters by laser beam welding or tungsten inert gas welding with filler metal.The TIG welded joint has a wider HAZ,and the laser welde...

试验结果表明：在工艺参数合适的条件下，加焊丝TIG焊和激光焊均能获得成形较好的焊接接头；TIG焊接头热影响区较宽，焊缝深宽比小，而激光焊时热影响区不明显，焊缝深宽比大；两种焊接方法所获得的焊缝区组织均为均匀的等轴晶，但激光焊时焊缝组织更细，从而使接头抗拉强度大幅度提高，达到母材的94%左右。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。