查询词典 bundle of lines

The protective relay is very important factor to avoid unselected trip under complex faults between double circuit lines, and to enhance the reliability of power supply. In order to improve the performance of the relay devices during evolved faults, an evolve fault criterion used for power system EHV transmission lines is proposed in this paper.

同杆并架输电线路发生各种故障时继电保护动作的正确性及可靠性将极大地影响电力系统的供电可靠性和运行稳定性，因此对配置于同杆并架输电线路继电保护的研究有着十分重要的意义。

The origin of travelling wave and its propagation characteristics of modal components in time-domain and frequency domain are analyzed. The characteristics of configuration of railway Automatic Blocking/Power Continuous Lines and principle of various methods of travelling wave fault location are studied. Using transient surges extracted by transform voltage on the lines, a new method of double-ended principle of fault location is proposed.

本文分析了故障暂态行波的产生机理和模分量在时域、频域的传播特性，研究了铁路自闭/贯通线路的结构特点以及目前各种故障测距原理，提出了利用线路侧电压互感器提取暂态行波双端故障测距的新方法，该方法能够精确地测量各种类型的故障距离。

Spiral steel pipe company's existing production lines, two of hot-rolled seamless steel pipe production line and four thermal expansion seamless tube production lines, the production φ219-1820 double-helical SAW pipe joints 200,000 tons,φ57-377 seamless hot-rolled 200,000 tons of steel pipes,φ377-630 thermal expansion Seamless Steel Tube 60,000 tons, product implementation SY/T5037, GB/T9711, GB/T8163, API 5L, API 5CT standards, widely applicable to oil and natural gas industry, chemical industry, general Fluid transport and infrastructure projects such as a bridge piling, sells to 27 provinces, municipalities and autonomous regions, and over 700 sales outlets, the reliable quality and high quality services to our customers has won the recognition and welcome.

公司现有六条螺旋钢管生产线、两条热轧无缝化钢管生产线和四条热扩无缝管生产线，年生产φ219-1820螺旋缝双面埋弧焊钢管20万吨、φ57-377热轧无缝化钢管20万吨、φ377-630热扩无缝钢管6万吨，产品执行SY/T5037、GB/T9711、GB/T8163、API 5L、API 5CT标准，广泛适用于石油天然气工业、化学工业、普通流体输送及桥梁打桩基建工程等，销往全国27个省、市、自治区，700多个销售网点，可靠的质量和优质的服务赢得了广大客户的认可和欢迎。

Major undertaking powder, liquid coating production lines electrophoresis coating production lines, Jin Su coating production line, powder spray-painted the recovery room drencher, heat exchangers, gas Lutou infrared heating system installation works.

主要承接粉、液体涂装生产线电泳涂装生产线，浸塑涂装生产线，粉末回收房水帘喷漆房，热交换器，瓦斯红外线炉头加热系统安装等工程。

Each of the converting elements generates signal charge. K transfer electrodes (k is a positive integer more than 1) are provided for each of the photoelectric converting elements in the column direction. 2k signal lines are connected to the transfer electrodes for adjacent two of said photoelectric converting elements. The 2k signal lines are used to supply driving clock signals to the transfer electrodes for the adjacent two photoelectric converting elements, respectively.

每一个转换单元用于产生信号电荷。K个传输电极（K是大于1的正整数），被提供来用于在行方向中的光电转换单元的每一个。2K条信号线，接到该传输电极，以便邻接两个该光电转换单元，并且用于把驱动时钟信号分别地提供到用于两个相邻的光电转换单元传输电极。

The four components of uPA system could be synthesized and secreted by all the four cell lines, existed in duplet or triplet form (uPA/PAI-1,uPA/PAI-2,uPA/uPAR,uPA/PAI-1/uPAR and uPA/PAI-2/uPAR). The expression of uPA system were not in concomitance with the malignance of the cell lines.Subject headings urokinase; carcinoma, non-small-cell lung; cells,cultured

此4株细胞中均能合成与分泌uPA系统的4种主要成分，各因子以二联及三联复合物(uPA/PAI-1、uPA/PAI-2、uPA/uPAR、uPA/PAI-1/uPAR、uPA/PAI-2/uPAR)的形式存在；uPA系统的表达与这4种细胞的恶性程度并不一致。

Utilize auxiliary plane to solve the following problem: the point of intersection of lines, equation of the straight line, equation of the plane and the distance between lines in different planes.

利用构造辅助平面方法求：直线与直线交点；平面方程；直线方程；异面直线间距离。

When the centre line of road is spiral curve,the edge lines(equidistance lines of centre line) are not spiral curves,which makes it difficult for construction location.

在各种曲线组合当中，卵型曲线中的回旋线曲率半径不是从无穷大开始，最为复杂。

I've stitched Euclid's parallel postulate on to the surface. And the lines look curved. But look, I can prove to you that they're straight because I can take any one of these lines, and I can fold along it. It's a straight line.

我将欧几里德平行公设编织到表面上，这些线条看起来是弯曲的，但你看，我可以向你证明它们是直线；因为我可以拿起任何一条线，我可以沿线折叠，这是一条直线。

In his article entitled "On the manufacture of diffraction gratings and theoretical," the paper wrote,"If every inch with the same number of two engraved lines in contact with photographic copies of the state, the two grating The engraved lines are almost parallel will result in a set of parallel stripes, the direction of the two grating carved exterior angle between the line bisection, and their distance decreases with increasing inclination."

他在一篇题为"关于衍射光栅的制造和理论"的论文中写到"如果把每英寸具有同样数目的刻线的两个照相复制品处于接触状态，使两个光栅中的刻线几乎平行则就会产生一组平行的条纹，其方向将两个光栅刻线之间的外角二等分，而其距离随着倾角的减小而增大"。

It's bell can reach over a meter in diameter.

它的身体最大可以达到直径1米多。

Now they are overdue and I shall have to pay a fine.

现在他们过期了，我不得不付罚款。