只要精确测知一段子午线弧长，便会很容易地计算出地球的周长。
As long as the precise sensing a meridian arc length, we can easily calculate the circumference of the earth.
近代大地测量中，是利用恒星来测定地球某两地间子午线弧长的。
Modern geodesy, is used the stars to determine the earth a between meridian arc length.
根据子午线弧长的计算原理，推导出一个新的子午线弧长计算实用公式。
According to the principle of calculating meridional arc length, a novel practical formula is given in this paper.
介绍了利用子午线弧长的直接算法来解算大地问题中截面椭圆弧长的一种直接解法。
The solution of arc length of sectional ellipse for geodetic problem, which is based on the direct algorithm of meridian arc length is introduced in this paper.
介绍了利用子午线弧长的直接算法来解算大地问题中截面椭圆弧长的一种直接解法。
This paper analyses the disadvantages of the previous sectional ellipse method in geodetic problem computation.
本文针对图纸矢量化中的图元识别技术，提出了系统的基于线弧分离和拟合识别方法。
In this paper, a general method for meta-graph recognition is proposed based on curve fitting and separation of line and smooth curve.
对坐标转换的基本概念和基本公式做了研究，给出了法截线曲率半径、子午线弧长和底点纬度的解算公式。
Research the basal concepts and formulas of coordinate conversion, the formulas of the radius of curvature in a normal section, the meridional length and the latitude of pedal are given.
通过在边坡滑弧上进行线积分，得出边坡在不同时刻的整体安全系数，进而提出了路堤边坡降雨作用下“小弧滑动”的概念。
The global safety factors were calculated by the stress integration along a slip line and a concept of "small slip failure" was introduced in stability of the embankment slope.
通过拖动可向弧或圆添加尺寸。将线端放在弧中心上，并将黄色的菱形放在弧线上。
Drag to add a dimension to an arc or circle. Place line end at arc center, and yellow diamond on arc.
角球区：以边线和球门线交叉点为圆点，以1米为半径，向场内各画一段四分之一的圆弧，这个弧内地区叫角球区。
Corner Area: the edge line with the goal line cross, have a dot, radius is 1m, drawing a quarter of circle arc.
太阳小心缓慢地向下移动着，渐渐地与地平线相交，直至剩下最后那个红色的弧。
The sun eased its way downward, melting into the horizon until only a final red arc remained.
缸体的实际型线是双弧外摆线的等距曲线，并由此导出其数学表达式。
The actual cylinder shaped conductor is isometric curve of double arc outside cycloid and its mathematic expression was deduced.
预弯边机是大直径直缝埋弧焊管生产线的关键设备之一。
Pre-bending machine is one of the most important facilities in the production of LSAW pipe with larger diameter.
介绍了ADSS光缆的力学计算，给出了光缆弧垂、张力、应变和悬长等计算公式，并对普遍采用的“悬链线”和“抛物线”两种计算方法加以比较。
The mechanical calculation of ADSS fiber optic cable is introduced and the calculation formulae for sag, tension, strain and slack length etc are given.
优雅的蝎尾勾成一道唯美的星弧指向南方地平线。
It's that curved 'tail' of stars looping down toward the southern horizon that does the trick.
股骨内侧弧的曲线是抛物线。
得分打击队员只要正在射门弧内触球后，球的团体从球门横梁下超出球门线的得分圆为有用。
Have points Players in attack only shot in touch in arc, the ball from the whole goal over the goal line under the beam is valid points.
短角球 短角球是指防卫队员正在本圆22.9米线内故意犯规或正在射门弧内偶然犯规，被评判员判奖短角球。
Short corner Short corner is refers to the defensive player of the year in his own 22.9 meter to foul or in the shot in foul, was accidentally arc the referee calls short corner.
用途：用作电焊条生产之焊条芯线，埋弧焊丝（SAW）、氩弧焊丝（TIG）、电弧焊丝（MIG）之半成品线。
Application:with steady chemical compositions, it can be used in welding and manufacturing semi-finished of SAW, TIG, MIG wire, etc.
这一弧后盆地的形成与沿西金乌兰湖—空喀山口至乔戈里峰一线的古特提斯洋盆的扩张及向北俯冲、消减相联系，构成了塔里木板块南部晚古生代活动大陆边缘。
The formation of this back arc basin was related to the spreading and northward subduction of the Paleo Tethys oceanic basin along the line from the Xijir Ulan Lake K…
提出了2 1世纪中国建设大口径直缝埋弧焊钢管生产线及管线钢用宽厚板国产化的必要性。
It also raises the necessity that China shall build LSAW pipe production line and produce wide and thick plate for pipeline steel in 21 century.
宝钢UOE机组是我国第一套现代化大口径直缝埋弧焊管机组，也是世界上装备最先进的大口径直缝埋弧焊生产线。
Baosteel's UOE mill is the first modern large-diameter longitudinal submerged-arc welded (LSAW) pipe unit in China. It is also an advanced production line of the same kind in the world.
简要介绍了直缝埋弧焊钢管生产线预弯工序的重要性、预弯的功能以及预弯工艺过程。
The purpose of prebending process of longitudinal submerged arc welding pipe production line is introduced; character of roller prebending and mould press type prebending is analyzed.
熔体管采用含氧化硅较高的原料作灭弧介质，应用小直径的金属线做熔丝。
Melt the oxidation silicon tube containing high raw material for arcing medium, application of small diameter metal line do melt silk.
熔体管采用含氧化硅较高的原料作灭弧介质，应用小直径的金属线做熔丝。
Melt the oxidation silicon tube containing high raw material for arcing medium, application of small diameter metal line do melt silk.
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