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线弧

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A traffic network includes a node set and an arc set,which can be derived by the line. Before the line is converted to network, data processing must be done.

交通网络可抽象为节点集和弧段集的集合,其图形基础是线,再通过线派生出网络相应的节点集和弧段集。

Roundness tolerance of pitch diameter Roundness tolerance for a minimum of 345o circumferential arc of the pitch diameter shall not exceed .002 inch (0.051 mm) total, or one half the pitch diameter tolerance if the pitch diameter tolerance is less than .004 inch (0.102 mm); roundness tolerance of the remaining 15o maximum circumferential arc shall not exceed .004 inch (0.102) total, provided such tolerance does not result in excrescence on the thread flank.

圆度公差沥青直径圆容忍最低限度的345o圆周弧音高直径不得超过0.002英寸( 0.051毫米)总,或一的一半,足球场直径公差,如果沥青直径公差小于0.004英寸( 0.102毫米);圆的耐受性,其余15o最大周弧不得超过0.004英寸( 0.102 ),共计提供这样的宽容不会导致在excrescence对线程的侧翼。

The structures, features, application principles and on-site applications of six kinds of prevention products developed on the basis of above mentioned methods, i.e., the insulation striped arc-protection fitting, clamping post porcelain/ composite insulator, stab-type arc-protection fitting, stab-type clamping post porcelain/composite insulator, ring electrode MOA with external series gap and stab-type electrode MOA with external series gap, are presented.

分析了10 kV配电网绝缘导线雷击断线机理,归纳出"疏导式"和"堵塞式"2种防护思路,介绍了基于2种防护思路研制的剥线型防弧金具、放电箝位柱式瓷/复合绝缘子、穿刺型防弧金具、穿刺型放电箝位柱式瓷/复合绝缘子、环形电极带外串联间隙金属氧化物避雷器和穿刺电极带外串联间隙金属氧化物避雷器6种防护产品的结构、特点、应用原则及现场应用情况。

It is proved that arc coordinates of a directed curve cannot be used as ordinary coordinates or generalized coordinate s for the motion of an Appell-Hamel particle without a fixed orbit, but they can be used as quasi coordinates.

证明了弧长坐标 s在轨道未知的 Appell- Ham el质点运动中不能作为普通坐标或广义坐标,但可以作为准坐标,指出文献 [1]中引入弧长 s坐标的做法及"Appell- Ham el质点运动的轨迹是一般螺线"的结论是正确的,但其Appell- Ham el约束是完整约束及在该质点运动中 s坐标是广义坐标的观点是错误的。

First,the center spine profile and the boundary profile were designed according to the normal trend of lumbar curvature and the position of shoulder rest and lumbar rest.

首先在保证腰弧曲线的正常形状和保证肩靠与腰靠的正常高度与宽度的前提下,设计了骨架靠背的中心脊线轮廓和边界轮廓线;利用中心脊线和边界线上取等比例点并构造样条线的方法,设计了横向断面线。

Combined with engineering practices, this article proposes that feeder section is regarded as graph, the nodes inside the section are treated as vertexes of graph, and the lines between nodes as arcs.

结合配电自动化的工程实际问题,提出将馈线区间作为一个图,并将区间内各节点作为图的顶点,节点间线段作为图的弧,以线路潮流的方向作为弧的方向,并由此建立了配电网馈线区间的数学模型。

The height of central part of the round cambered surface is equal or higher than the one of ring- shaped bulge. When the horizontal top side of internal cavity of encapsulation mold is pressed down to the heat sink so as to produce a deformation, the cambered surface can not be pressed to oppress the subjacent metal line, and the ring-shaped bulge can also prevent mold-overflow.

该散热片,适用于封装制程,具有一圆形弧面板部,并且其圆形弧面板部的中央是高于或等于环状凸起的高度;如此一来,当封胶模具内模穴的水平顶面下压至散热片上而使其产生变形时,圆形弧面板部就不会压迫到下方的金属线,而环状凸起同样也可发挥防止溢胶的功能。

Arc cutting;Arc welding;Arc welding cables;Arc-welding equipment;Blowpipes;Connectored joints;Construction requirements;Definitions;Degrees of protection;Dimensioning;Electric contact protection;Electrical engineering;Electrical safety;Environmental condition;Equipment;Feed;Feeder units;Feeding devices;Filler wire;MAG welding;Manual arc welding;Marking;MIG welding;Operating instructions;Performance requirements;Plasma arc cutting;Plasma-arc welding;Protection against electric shocks;Protective measures;Safety;Safety devices;Safety requirements;Specification;Temperature range;Test conditions;Testing;Testing conditions;Welding;Welding engineering;Welding equipment;Welding power supply;Wire guiding;Wires

中文标题弧焊设备。第5部分:焊丝进料装置中文主题词电弧切割;电弧焊接;弧焊电缆;电弧焊接设备;焊枪;连接器的连接件;结构要求;定义;防护等级;尺寸选定;电接触保护;电气工程;电气安全;环境条件;设备;进给量;进料装置;供片装置;填充金属丝;MAG焊接;手动弧焊;作标记;金属极惰气保护焊;操作说明书;性能要求;等离子体电弧切割;等离子电弧焊;防电击;保护措施;安全;安全装置;安全要求;规范;温度范围;试验条件;测试;测试条件;焊接;焊接工程;焊接设备;焊接电源;校正铜网;金属线

Arc cutting;Arc welding;Arc welding cables;Arc-welding equipment;Blowpipes;Connectored joints;Construction requirements;Definition;Definitions;Degrees of protection;Dimensioning;Electric contact protection;Electrical engineering;Electrical safety;Environmental condition;Equipment;Feed;Feeder units;Feeding devices;Filler wire;MAG welding;Manual arc welding;Marking;MIG welding;Operating instructions;Performance requirements;Plasma arc cutting;Plasma-arc welding;Protection against electric shocks;Protective measures;Safety;Safety devices;Safety requirements;Specification;Temperature range;Test conditions;Testing;Testing conditions;Welding;Welding engineering;Welding equipment;Welding power supply;Wire guiding;Wires

中文标题电弧焊设备。第5部分:焊丝进料装置中文主题词弧切割;弧焊;电弧焊接电揽;电弧焊接设备;下流管;接头;施工要求;定义;保护程度;标注;电气接触保护;电气工程;电气保护;环境条件;设备;进料;进料单元;进料设备;填丝;MAG 焊接;手工电弧焊;做标记;MIG 焊接;操作说明;性能要求;等离子弧切割;等离子弧焊接;电击防护;保护措施;安全;安全仪;安全要求;规范;温度范围;试验条件;试验;焊接;焊接工程;焊接设备;焊接电源;线材指示;线

Sheer, B, ridge arc C, side top of the wall line D, the top line of the outer plate 4, the tail shaft exit ribs Contour Smoothing Setting out should meet the ...

、舷弧B、脊弧C、舷墙顶线D、外板顶线4、尾轴出口处肋骨型线放样时应满足的光顺。。。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。