查询词典 arc

It was found recently that magnetic arc blow, inherently happens with such kind of welding process, particularly in deep groove welding of the first layer, can produce various kinds of weld defects, interfere the welding operation and make the arc length control system to work unproperly.

近年来在MIG焊研究中发现电弧磁偏吹现象严重，特别是坡口对接封底焊，会造成多种焊缝缺陷，甚至无法进行焊接，还会造成弧长闭环控制系统混乱。

By experiment of arc movement process, the viewpoint that arc is split or unsplit into series arcs by deion plates is improved.

通过对电弧在不同结构灭弧室中运动情况的试验分析，提出了电弧能否分成短弧进入栅片的理论观点。

Fig. 2-9 Scanning electron micrographs of HDPE/pine-based WPC that was unweathered, 400-h xenon-arc-weathered, 2000-h xenon-arc-weathered, and 2-year exterior-weathered.

图2-9 HDPE/松木WPC的电子显微影像：无经耐候试验，经400 h氙弧灯耐候试验，经2000 h氙弧灯耐候试验，经2年户外耐候试验。

The power of its electronic transgression is 2.7ev, 40% less than that of pure tungsten electrode. With a low arc derivation voltage. It's easy to cause arc of high stability. Its current capacity is elevated 30% while its rate of burn spoilage drops low, making it more durable.

电子逸出功约2.7ev，比纯钨低40%，引弧电压低，易起弧，电弧稳定，载流能力提高30%，烧损率低，寿命延长。

There are no arc chutes and no arc by-products.

没有弧滑道和没有弧副产物。

The short circuiting transfer pulses in the CO_2 arc welding have a great interference to the signals processing of the arc sensor.

CO2气体保护焊的短路过渡脉冲对电弧传感器信号处理存在较大的干扰。

The effect of the arc-ultrasonic irradiation on the adhesion coaling was investigated by keeping the ultrasonic frequency constant and changing the voltage, using the coating prepared in the absence of the arc-ultrasonic irradiation as a reference.

喷涂过程中保证超声激励频率不变，改变超声激励电压，并与不加超声进行对比，研究了其对涂层结合强度的影响。

The unsuitable potential of the constricting nozzle is the essential reason of arc interference and double arc.

不利的喷嘴电位干扰是产生主电弧与维弧相互干涉和双弧的根本原因。

For Southwestern Margin of Aqikekule Lake ophiolite, their field geological, petrological, minerological, petrochemical and geochemical characteristics show that:① it outcropped as tectonic slices along the near west-to-east strike Kunzhong fault and is composed of metamorphic perodotties, cumulates and volcanic rocks, in which, chromites are distributed in the upper part of metamorphic peridotites as pods, or in the lower part of cumulates as near-strata;② metamorphic peridotites include serpentinites, chromite-bearing serpentinites, chlorite-epidote schists and chromitites, of which, chromitites have nodular and orbicular structure, and cumulates include pyroxenits, serpentinites, chromite-bearing serpentinites, chromites and metamorphically mafic rocks and only basalts are seen in volcanic rocks;③ Cr# of chromites suggest that they formed in the SSZ and Al〓O〓 and TiO〓 of metamorphic peridotites also suggest SSZ environment;④ metamorphic peridotites have V type and enriched LREE patterns, cumulates have from strongly depleted LREE, flat REE to enriched LREE patterns with universally striking positive Eu anomalies and basalts show flat REE or slight enriched LREE patterns with no Eu anomalies;⑤ trace element and Sm-Nd isotope characteristics of metamorphic peridotites imply their strikingly heterogeneous mantle character ε〓(t+4.39～+26.20 and later Nb, Ta fertilization;⑥ trace element characteristics of basalts and their tectonic diagrams show they probably formed in the rifted island arc or back-arc basin environment.

对阿其克库勒湖西南缘蛇绿岩，野外地质、岩石学、矿物学、岩石化学以及地球化学等特征表明：①该蛇绿岩以近东西向、沿昆中断裂呈构造岩片出露，由变质橄榄岩、堆晶岩和火山岩三个单元组成，其中见铬铁岩呈豆荚状产于变质橄榄岩的上部，或呈似层状产于堆晶岩的下部；②变质橄榄岩包括蛇纹岩、含铬铁矿蛇纹岩、绿帘绿泥片岩和铬铁岩等类型，其中，豆荚状铬铁矿具有结核状构造和球状构造，堆晶岩包括辉石岩、蛇纹岩、含铬铁矿蛇纹岩、铬铁岩和变质基性岩等类型，火山岩仅见玄武岩；③铬铁矿的Cr#表明其形成在俯冲带，变质橄榄岩的Al〓O〓和TiO〓成分也指示了SSZ环境；④变质橄榄岩的稀土配分型式见V型和LREE富集型两种型式，堆晶岩表现出从LREE强烈亏损、REE平坦分布到LREE富集的配分特征，并且普遍具有醒目的正Eu异常，玄武岩的稀土配分型式表现为平坦型或LREE略富集，无Eu异常；⑤变质橄榄岩的微量元素及Sm-Nd同位素特征指示了其地幔的显著不均一性ε〓(t为+4.39～+26.20以及Nb、Ta在后期的富集；⑥玄武岩的微量元素特征及构造图解表明其可能形成在裂谷岛弧或不成熟的弧后盆地环境。

According to the diagrams of AlZ-TiO2, Wo-En-Fs and An-Mg′, the amphibole gabbros are suggested to be generated at an island arc and the olive gabbros are formed in a back-arc basin setting.

根据AlZ-TiO2、Wo-En-Fs以及An-Mg′图解，结合其微量元素地球化学特征可以判断角闪辉长岩类形成于岛弧环境，橄榄辉长岩产于弧后盆地环境。

As a dominant party,CPC government should play a guardian,supervisee and guarantee role to overcome all the difficulties in the development of charitable cause and bring it into full play in the establishment of harmonious society on policies and regulations basis.

在中国共产党的文献中第一次把发展慈善事业提到&最广泛最充分地调动一切积极因素，不断提高构建社会主义和谐社会的能力&的高度来认识。近年来，社会学界对慈善事业的理论专著发表较多，有鉴于此，笔者不揣浅陋，谈谈自己的认识和见解。

Flow through the land, the land of the scale of operation allows the effectiveness of the land may be raised.

通过土地的流转，土地的规模经营可以让土地的效益得到提升。