特殊用法abnormal low-voltage arc1.反常低压电弧AC arc1.交流电弧afferent arc1.传入弧approach arc of contact1.进入啮合弧长度argon arc1.氩弧(焊)ascending arc1.上升弧线atomic hydrogen arc1.原子氢电弧balance arc1.摆弧;【采矿】平衡量Beaman stadia arc1.毕门视距弧branchial gill arc1.鳃弓break arc1.切断电弧brush arc1.电刷电弧carbon arc1.炭精电弧circular arc1.圆弧circumhorizontal arc1.【光】环地平弧circumzenithal arc1.【光】环天顶弧closed curve arc1.闭曲线弧conjugate arc1.共轭弧contact arc1.接触弧contiguous arc1.【天】相接环形山弧continuous arc1.连续弧Copper-Hewitt arc1.古柏海卫特弧crackling arc1.响弧crater arc1.【天】环形山弧, 坎弧cutting arc1.切割弧declination arc1.(罗盘仪上的)磁偏角弧decemental arc1.【天】渐缩环形山弧descending arc1.(箭)下降弧线direct electric arc1.直接电弧diurnal arc1.【天】周日弧Duddell arc1.杜德耳电弧(直流电弧)electric arc1.电弧elevating arc1.(升降机构的)扇齿轮escaping arc1.擒纵弧Euler's polygonal arc1.欧拉折线flaming arc1.焰弧flash arc1.火花弧, 闪光电弧flex arc1.叠加高频电流的电弧焙焊机forceful arc1.强电弧free arc1.自由弧genicular arc1.(直翅目昆虫)膝曲纹geodesic arc1.测地弧globular arc1.球形弧goniometer arc1.测角器分度圈graduated arc1.分度弧hard arc1.强电弧hissing arc1.嘘声弧(石墨弧光灯的)high-field emission arc1.(强场)场致(电子发射)弧high-intensity carbon arc1.高强度碳弧灯high-tension arc1.高压电弧hyper arc1.超弧hyperbolic arc1.双曲线脱离轨迹弧ideal pole arc1.理想极弧inferior arc1.劣弧interrupted arc1.间歇电弧, 断续电弧inverse arc1.逆弧iron arc1.铁弧island arc1.【地质】弧形列岛Jordan arc1.约当弧keep-alive arc1.保活弧(汞弧整流器用)keratoscopic arc1.角膜散光计弧locking arc1.锁闭圆弧long arc1.长弧low parry arc1.下偏珥low tension arc1.低压电弧luminous arc1.发光弧magnetic arc1.磁弧major arc1.副弧; 大弧, 优弧match arc1.匹配弧maximum-thrust arc1.最大推力飞行轨迹弧mercury arc1.【电子】汞弧meridian arc1.子午线弧metal arc1.金属电弧minor arc1.【数】劣弧mirror arc1.【摄】带反射弧光灯needle plasma arc1.微型等离子弧, 针型等离子弧negative arc1.负弧neural arc1.【生理】神经反射弧nitrogen arc1.氮弧nozzle arc1.喷嘴弧段nuclear arc1.晶状体涡open arc1.开弧opposite arc1.反向弧oscillating arc1.振荡电弧penalty arc1.罚球弧perimeter arc1.视野计弧pitch arc1.弧线; (齿的)相同节距弧plasma arc1.等离子弧, 等离子体电弧polar arc1.极弧positive arc1.正弧Poulsen arc1.浦尔生电弧propeller arc1.螺旋桨弧pseudo-periodic arc1.伪周期弧, 准周期弧quadrantal arc1.象限弧quiet arc1.静弧radiating arc1.辐射弧rectifiable continuous arc1.可求长的连续弧reflection arcs1.反射线reflex arc1.【解, 动】反射弧regular arc1.正则弧residual arc1.残留电弧reversed arc1.【地质】反向岛弧rolling arc of contact1.轧辊的接触弧safety arc1.安全射击扇面scale arc1.标度弧segmental arc1.弧段self-adjusting arc1.自调电弧self-stabilizing arc1.自稳定电弧shielded arc1.屏蔽电弧, 覆罩电弧short arc1.短弧shortest arc1.最短弧(无等离子体的电弧, 或等离子体短到电压降可忽略不计的电弧)silent arc1.无声电弧simple arc1.简单弧singular arc1.奇异弧线slewing arc1.转向扇形齿板sprayer jet arc1.喷雾器弧形喷管stable arc1.稳定的电弧stadia arc1.视距弧striking arc1.引电弧submerged arc1.埋弧sun arc1.(拍摄电影用)弧光灯sunshine carbon arc1.日光型碳弧老化试验机superior arc1.优弧sustained arc1.持续弧swinging arc1.摆弧switching arc1.切换电弧symmetrical arcs of pattern1.(衍射)花样对称衍射线tangent arc1.【气】晕切弧thermic arc1.热电弧throwing arc1.起掷弧thrust arc1.推力飞行轨迹弧time-like arc1.似时间弧transition arc1.过渡圆弧traversing arc1.方向齿弧(炮)tungsten arc1.钨电弧turbulent arc1.漂移电弧turn arc1.旋转弧upper arc of vertebra1.上弓(背弓)upward arc1.上升弧vacuum arc1.真空电弧vertebral arc1.髓弓, 椎弓visible arc1.明弧voltaic arc1.电弧vortex-stabilized arc1.涡流稳定弧welding arc1.焊弧zero-thrust arc1.零推力飞行轨迹弧arc of action1.作用弧arc of admission1.进气[汽]弧段arc of a graph1.图的弧arc of approach1.渐近弧, 闪隙弧, 退弧arc of characteristic1.特性弧线arc of fire1.射弧, 射界arc of lighting1.光弧arc of motion1.平衡弧(钟表机构); 回转圆弧arc of oscillation1.摆幅, 振幅; 摆动幅度; 振动弧arc of parallel1.纬圈弧arc of recess1.渐远弧arc of rotation1.转动弧arc of trajectory1.弹道弧;轨迹弧arc of vibration1.振幅, 摆幅arc of visibility1.【航海】能见弧