查询词典 arc

About the Calculation of Arc length of the Oriented Smoth Curve or Jordan;2. The experimental results show that the optimum melting voltage is 35～36 V,the reasonable arc length is 25～29 mm.

以海绵钛和中间合金压制的电极经两次熔化得到的TC11合金铸锭为原材料，采用真空自耗电弧炉，在不同的电压下熔炼3次TC11合金铸锭，研究熔化电压、弧长与TC11合金铸锭扒皮深度和扒皮量的关系。

The main production facilities are: groove machine, cutting plate machine, coiling machine, wheel planes, legislation car radial drilling machine, lathe, 25 T lane (lifting height 12 meters), 10 T lane, 5 T lane, AC-DC welder, argon Arc welding machine, the head trimming machines, carbon steel, stainless steel submerged arc welding, plasma cutting machine, elbow, etc. more than 100 sets of equipment.

主要生产设备有：坡口机、剪板机、卷板机、滚轮架、立车、摇臂钻床、车床、25T行车（起吊高度12米），10T行车、5T行车、交直流焊机、氩弧焊机、封头切边机、碳钢、不锈钢埋弧自动焊机、等离子切割机、弯管机等100多台套设备。

Of the change in the angle of a tangent that moves over a given arc to the length of the arc.

曲''。'率'。''切线通过给定弧线的角度变化与弧线长度之间的比率

2The ratio of the change in the angle of a tangent that moves over a given arc to the length of the arc.

曲率：切线通过给定弧线的角度变化与弧线长度之间的比率

This phenomenon is located in the Gulf of Venezuela, Maracaibo Kata Map Mbo river mouth, which is the Cloud Layer between cloud lightning, in the 5 km altitude to form a voltage arc, each successive 140-160 a night, every night for 10 hours or so, the arc voltage per hour to 280 times the usual intensity.

该现象位于委内瑞拉马拉开波湾的卡塔图姆博河道口，这是云层对云层间的闪电，在5千米高空处形成一个电压弧，每年持续140-160个夜晚，每晚持续10个小时左右，其每小时的电压弧强度是平时的280倍。

A rectifier used in high-voltage direct current power transmission systems and industrial processing between about 1909 to 1975 is a mercury arc rectifier or mercury arc valve .

汞弧为整流高压直流电源传输系统中的使用和工业加工 1909年到 1975年之间是汞弧整流器或汞弧阀。

In this paper, the main features of the ion plating technology with multiple ARC sources and a series multi-arc coating equipment are described. It is proved that the tool life coated TiN would be 11 t...

本文论述了电弧蒸发源和多弧离子镀的特点，介绍了国内首次研制的DHD—800多弧刀具镀膜设备及其系列产品，工艺试验表明一次装炉φ6mm钻头 800支， TiN膜厚2um，硬度2000Hv，寿命提高 11.2倍。

The important influencing factors for SWNTssynthesis using electric arc are studied, such as ratio of catalyst, current intensity for arc,presure of noble gas and catalysts variety.

探讨了催化剂种类、催化剂配比，助长剂的添加及打弧电流等因素对合成的影响。

In order to reconstruct the paleo-tectonic history,the ophiolite suite in combination with the arc igneous rock assemblage is necessary to be used and the cause of the compositional polarity for the arc igneous rocks is discussed.

指出由蛇绿岩套再造的古构造历史可能是残缺的，结合弧火成岩的厘定可在某些方面弥补这个不足，讨论了弧火成岩组成极性形成的可能原因。

On the basis of practical exploration and design of NC plasma arc cutter, this paper studies into the technology of NC plasma arc cutting at high speed and accuracy.

论文是在数控等离子弧切割机开发设计的实践基础上，对高速、高精度数控等离子弧切割技术进行了研究。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。