The rainbow forms an arc in the sky.

彩虹在天空中呈一个弧形。

The sun appears to move in an arc across the sky.

太阳看起来在天空中以弧形运行。

The rainbow described an arc in the dark sky.

彩虹在昏暗的天空划出了一道圆弧。

Sharp corners should be radiused to prevent arc over.

这是所有剪裁下来的片子。

The arc bar counter dazzles dexterousness and uniqueness.

向外弧出的小吧台，又炫亮了一份别致。

A solar phenomenon known as a sundog arcs over the tundra in Churchill, Manitoba, Canada.

/ 太阳的“假日”天文现象半悬于加拿大Manitoba丘吉尔苔原的天际。

A radius dimension line uses one arrowheaded, at the arc end.

半径标示线由箭头线和圆弧组成。

This paper introduces the arc added glow discharge ion titanizing technique.

介绍了一种新的表面合金化技术———加弧辉光离子渗钛技术。

Has current preplacement, preview and arc starting current, arc force current regulation function, it makes welding operation easier.

具有电流预置预显和引弧电流、推力电流调节功，使焊接操作更容易。

The tiny but intriguing yellowish arc visible near the blue nebulae marks young variable star R Coronae Australis.

在蓝色星云附近，微小但迷人的微黄色弧状可见物标出了年轻可见恒星南冕座R星的位置。

A control system based on single chip microprocessor is designed for submerged arc welder with magnetrol power source.

针对磁放大器式电源埋弧自动焊机设计了单片机控制系统。

The composites with interpenetrating networks have good structure homogeneous and performance; also their mechanics, calorifics and tribology arc excellent.

网络互穿复合材料的组织性均匀性较好，具有优良的力学、热学和摩擦学性等。

Kezlag rock formation whose mother rocks are greywacke is basinal deposit, Karakez rock formation's protolith is island arc volcanics.

克孜拉格岩组原岩为杂砂岩，属盆地沉积；卡拉格兹岩组原岩为岛弧火山岩。

Utilized this method to segmentalize the image of oil derrick arc welding robot welding line gets up the good effect.

将该方法运用于石油井架弧焊机器人焊缝图象的识别中起到很好的效果。

The effect of process parameters on the electric insulance of micro arc oxidated ceramic coat on aluminium plate is studied.

研究了工艺参数对铝微弧氧化陶瓷层电绝缘性的影响规律。

The procedure and characteristic of the arc discharge,feature of ignitron,firing way,structure features and its application are described in the paper.

汞弧光放电是一种低气压气体放电现象,放电电流密度大。

It has properties of hardening after malleablization,arc welding and impact resistance.It can grind but can not machining demagnitized steel-bonded carbide.

具有加工硬化、电弧烛接和耐冲击的特性，可磨削但不可机械无加工磁性的钢硬质合金。

When the Lanes joint a Plane curve,such as a clothoid or an arc with small radius,itll need repeatedly compute and adjust.

尤其是变速车道起点对应的主线线形为圆曲线或缓和曲线时,往往反复试算调整,也难以得到比较理想的设计方案。

Plasma transferred arc produces the induced electromagnetic field that makes liquid metal convect in molten pool in the surface metallurgical course.

在表面冶金过程中等离子束产生感生磁场,使熔池内液态金属产生对流运动。

An annular cavity placed around the anode of arcjet was designed to form a regenerative cooling channel on the base of an arc jet.

该文在原有电弧加热发动机基础上进行改进，设计了覆盖发动机阳极的环形空腔，形成再生冷却通道。