He straightened his back and made as if to throw something in a gentle arc far into the distance. 他伸直腰,好像要沿着一条长长的弧线,把什么东西抛向远方;
Furthermore, the self-adaptive weights arc obtained from the Gaussian distance ration in cluster approximation, which can lead to the more accurate clustering results. 此外,该算法采用近似集合中的高斯距离比例来表现样本权重,从而可以在多种数据分布上得到更精确的聚类结果。
Arc Welding Power Sources of Clearance and Creepage Distance 弧焊电源的电气间隙和爬电距离
The laws are investigated in detail through experiments on the forming process by adjusting the scanning number, the plasma arc current, the scanning speed, the stand-off distance of plasma arc and the thickness of sheet metal. 通过实验,得出了扫描次数、电弧电流、扫描速度、电弧高度、薄板厚度等参数对弯曲变形的影响规律。
This paper analyzes "arc hanging" formula in sending lines, infers a formula to calculate the distance between phase wire tower electric equipment, and applies this formula in the actual project construction. 通过对送电线路弧立档弧垂公式的分析,推导出了进线档中相导线对塔身电气距离的计算公式,并结合工程实际对该公式进行了应用。
In this paper, we study the multiple attribute shortest path problems with fuzzy random arc length, which has three attribute: distance, transportation time and transportation cost. 在本文中,我们研究具有模糊随机弧长的多属性最短路问题,即每条弧有三个属性:路程、运行时间、运行费用。
To keep the stability of welding arc is an important task in welding automation field, when the distance between the welding torch muzzle and the surface of the work piece changes. 在MIG焊接过程中,当焊枪喷嘴与工件表面的距离发生变化时,如何保证焊接弧长的稳定是焊接自动化领域研究的重要课题之一。
Otherwise, the author applies step arc vectorization algorithm, direction statistic distance morphology, noise-removing algorithm and some basic operation towards binary images. 此外,还成功运用了步进圆弧矢量化方法、方向距离统计法、最长延伸原则、最广延展原则、数学形态学噪声滤除技术以及对二值图像的一些基本操作。
The Engagement of Gears with Circular Arc Profile in Normal Plane at the Presence of Errors on Center Distance and Depth of Cut 法向圆弧齿轮在有中心距偏差和切深偏差时的啮合
Research on shaping Milling processes for 3 Arc Segnents Equal distance profile axle 三弧段等距型面轴成形铣削工艺研究
Meanwhile, Using this apparatus measured soil containing water data from plane and section, and using software Arc view insert value analyzed by distance inverse ratio measure, the result is very good. 同时,还用该仪器从平面与截面这两个方向测量了土壤含水率,并用Arcview软件进行了距离反比法插值分析,取得了较好的结果。
On the other hand, the abrasive wear loss of the coatings decreased with the increasing in arc power, and increased with increase of operating gas flow and spray distance. 涂层的磨粒磨损质量损失随电弧功率的增加而减少,而随工作气体流量和喷涂距离的增加而增加。
Based on the 2 faults of composite insulators on 110 kV lines caused by lightning strike the measures of increasing effective dry arc distance and installing gap on insulator are proposed. 根据2起110kV线路雷击引起的工频电弧造成合成绝缘子烧伤的故障,提出了增加合成绝缘子有效干弧距离及安装绝缘子间隙防雷装置的防反措施。
The results show that the hybrid weld width increases with the increase of arc power and laser power, and decreases with welding increased speed, while the laser-arc distance and defocusing distance have little influence on it. 结果表明,复合热源焊缝熔宽随电弧功率和激光功率的增大而增大,随焊接速度的提高而减小,而光丝间距和离焦量对复合热源焊缝熔宽影响相对较小。
The effects of plasma arc power, operating gas flow and spray distance on particle velocity during spraying, the microstructure and properties of the coatings were investigated. 研究了电弧功率、工作气体流量和喷涂距离对粒子速度与涂层组织结构和性能的影响。
When the transition arc is ground the distance between the gyration center of the transition arc and the surface of the grinding wheel must be equal to the gyration radius of the transition arc identically. 磨削刀片过渡圆弧时,过渡圆弧的回转中心到砂轮面的距离必须恒等于过渡圆弧的半径,磨削过渡圆弧的复合运动要保持过渡圆弧的回转中心沿平行于砂轮面的直线运动;
Since DC transmission technique came out in 1882, it has went through 2 high speed developing stages, i. e. mer-cury arc valve, controlled sillcon valve and microprocessor, which have been widely used in long distance overhead transmission and cable transmission. 直流输电技术自1882年问世以来,经历了汞弧阀、可控硅阀和微处理器2个高速发展时期,现已广泛应用在长距离架空输电和电缆输电。
With the result that the gas flow speed of the new gun is far higher than that of the generally used arc spray gun and the speed of the new gun maintained approximately 600m/ s at the distance 80 mm from the output of the gun. 结果表明:新型喷枪的雾化气流速度的测试计算值在距枪口80mm的范围内仍然能保持在600m/s左右,比普通喷枪的雾化气流速度有显著地提高;
The results showed that the particle velocity was influenced significantly by plasma arc power, operating gas flow and spray distance. The velocity increased with increase of plasma arc power and operating gas flow, decreased with increase of spray distance. 结果表明,电弧功率、工作气体流量和喷涂距离对粒子速度的影响都比较明显,粒子速度随着电弧功率和工作气体流量的增加而增加,随着喷涂距离的增加而下降。
The electrical contact sliding wear behavior of Cu-Cr-Zr alloy had been studied, and the results showed that the wear mechanisms mainly were adhere wear, arc erosive and abrasive wear and that there was a linear relation between the wear loss and sliding distance. 对Cu-Cr-Zr合金的电接触滑动磨损性能的研究结果表明:电接触滑动磨损的机理是熔焊粘着磨损、电侵蚀磨损及磨粒磨损,它们的磨损量随滑动距离的增加呈线性增加。
When the rotational arc scans the groove, causing the distance between the tip and workpiece ( CTWD) to change regularly, the welding current change in accordance. 它通过电弧的旋转来扫描焊接坡口,引起导电嘴与工件之间的距离(CTWD)有规律变化而引起焊接电信号变化来探测焊炬高度和左右偏差。
Coupled arc is a new arc form formed by the interaction of the two arcs putted in a near distance. 耦合电弧是在保证较小间距下两焊接电弧相互作用而产生的一种新的电弧形式。
The combinations between stator pole and rotor pole, the ratio of stator pole arc width to pole distance and the phase winding connections are further analyzed for the new element generators with single-phase, two or four-phase and five-phase DSEG. 讨论了单相、两相/四相和五相DSEG单元电机新结构定、转子配合关系,定子极宽与定子极距之比以及电枢绕组元件连接方式。
The following motion guide rolls are adopted. The motion track is a segment of arc and the center is decided by the axis of drive roll, the distance of different times is computed and used to control the motion of guide rolls. 在模拟中采用随动式的导向辊,其运动轨迹为一段以驱动辊轴线为中心的圆弧。
In order to further allay supply line noise, after confirmed the modulus maxima points, this system determine whether the arc is burning and half cycle through the distance between maxima points. 为了进一步消除供电线路噪声的影响,系统通过计算奇异点间的距离,来判断奇异性点是不是具有周期性,从而判断故障电弧是否真正燃烧及燃烧的半周期数。
At the second stage, when the length of partial arc reaches 60% of insulator leakage distance, electric field strength in the front of arc root and along the residual ice layer both increase considerably. 在电弧发展第二阶段,当电弧长度达到泄漏距离的60%时,弧足前方场强和剩余冰层上的电场强度都急剧增大。
The gas flow field distribution in arc quenching chamber under different breaking distance and the breaking characteristic of small capacitive current breaking and short current breaking have been well simulated and analysed. The corresponding results have been compared with the results calculated by commercial software ANSYS and FLUENT. 对气流场及小容性电流和短路电流开断特性进行了数值模拟并与商业软件FLUENT的计算结果进行了对比。
The electricity arc, welding velocity, laser defocus, and the distance between laser and electricity arc are important to the welding line modeling. When these parameters are configured reasonably, the quality of the welding is excellent. 电弧电流、焊接速度、激光离焦量、激光与电弧的距离都对焊缝的成型有重要影响,当这些参数达到合理的配置时,焊接质量最好。
The temperature distribution in different distances of two heat sources shows: the distance of laser and TIG arc is not the closer the better but a reasonable distance that can make the process stable and maximize the penetration. 通过改变激光与电弧之间的距离计算分析结果表明:激光与电弧之间的距离并不是越近越好,而是存在使焊缝过程稳定的同时又能达到最大熔深的最佳距离。