major arc

The author discusses the faults of the existing plasma cutting machine, difficulty to start arc and to transit from minarc to maxarc, then puts forward a new control scheme based on technical desires.

针对原等离子切割机存在的起弧困难和小弧到大弧的转移不连续的缺点，对原控制装置硬件结构和控制线路进行技术改造，使用结果表明：该装置运行可靠，起弧容易，控制效果好，并且提高了生产效率。

a wide, dangerous, sudden swerve

大弧度的、 危险的、 突然的转向.

The coast sweeps northwards in a wide curve.

海岸向北方呈大弧形展开。

greaves Etchell furnace

大电极型弧阻式电炉

moving in a wide curve.

大幅度弧线形运动的。

Drag to add an arc with adjustable size and orientation. Complementary arc can be shown.

拖动此形状，可添加一条大小和方向可调的弧线。可以显示互补弧线。

Understeer is when the front wheels are carving a larger arc than the rear wheels.

当前轮划出的圆弧比后轮划出的圆弧更大时，就是发生了转向不足。

A NEW DEVELOPMENT OF INVERTER FOR ARC WELDING--POWER MOSFET INVERTER FOR ARC WELDING

弧焊逆变器的新发展——大功率场效应管弧焊逆变器

When the helium content in the tri-mixed gas excesses 75%, the arc presents the characteristic of helium.

氦的体积分大于75%时，其电弧形成具有氦弧的性质。

Effects of Vibrio harveyi and V.anguillarum on Enzymes Activities in Different Organs of Large Yellow Croaker(Pseudosciaena crocea)

哈维氏弧菌和溶藻弧菌对大黄鱼6种酶活性的影响

heavy current line of arc furnace installation

电弧炉设备的大电流线路

Arc length symbol. Shape resizes with text.

弧长符号。形状大小随文本调整。

an angle formed at the intersection of the arcs of two great circles.

由两个大圆的弧相交而形成的角。

Measurement and Error Analysis of Overhead Line Arc Sag with Large Pole Span

大档距架空线弧垂测量及其误差分析

Control System for Large Electrode Arc Furnace Based on S7-300 PLC

基于S7-300 PLC的大型电弧炉控制系统

Application of automatic argon tungsten-arc welding on large valve members

自动钨极氩弧焊在大型阀件上的应用

Double Layer SAW Pipe with Large Diameter for Transmitting Oil and Gas

油气输送管道用大直径双层埋弧焊管

Stable electric arc can be ensured from undercurrent to high current.

从小电流到大电流都可以保持稳定电弧。

a spherical polygon formed by the arcs of 3 great circles.

由三个大圆的一些弧线所形成的球形多边形。