钢

In this paper, the characteristics of ultra fine grained steel s are firstly introduced Then its weldability is discussed,including properties and cracking susceptivity of HAZ and weld meta

介绍了超细晶粒钢的特点，针对这些特点，讨论了超细晶粒钢的焊接性，其中包括HAZ性能、焊缝性能、HAZ和焊缝的裂纹倾向等。

In which, the design combined the coping of bored piles construction platform with bottom of steel cofferdam, the lowering as a whole techniques, synchronousness controlling and orientation technology are innovation.

其中，将钻孔桩施工平台与钢吊箱底板结合的结构方案和钢吊箱整体沉放工艺、同步性控制和定位技术具有明显的创新性。

The taphole of UHP-EAF should stand severe molten steel corrosion, slag erosion, oxidation and temperature change during operation.

超高功率电弧炉出钢口在使用过程中要经受钢液的冲刷、渣液的侵蚀、氧化和温度的剧烈变化。

In this paper, thermograph method which has merits such as accuracy, short time, convenience and economy is applied to determine the fatigue limit of 45# steel from the temperature change, and the heat generation mechanism that resulted in temperature change during the fatigue was researched on.

文中利用具有准确、快速、便捷、低成本等优点的红外热像仪测量了45#钢疲劳过程中的温度变化，对疲劳过程中引起温升的机制进行了探讨，通过对试验数据的分析，实测值在疲劳极限估算值范围内，快速确定了45#钢的疲劳极限。

The two kinds of trial designs can reduce about 30% weight of tie beam, and the corrugated steel webs tie beam needs littler steel and has more advantages.

与原桥相比，两种试设计方案的系梁自重可减轻近30%，但波形钢腹板组合系梁方案的钢材用量较平钢腹板组合系梁方案少，更具优势。

The finite element analysis shows that the two kinds of trial designs meet demand.(3) Compared the static behavior of three kinds of designs with each other, the results show that using the steel web concrete combined box tie beam can reduce the structure internal force and is beneficial to structure stability.

采用波形钢腹板组合系梁和平钢腹板组合系梁进行了钢管混凝土拱梁组合桥的试设计，并进行对其有限元分析，结果表明两种试设计方案均满足受力性能要求。

It has steady composition, and it is known to the world that it is ery suitable for electrosmelting of steel . it is not only used as the replacer of scrap but also act as the tinner in electrosmelting of steel.

摘 要： DRI又称海绵铁，它的成份稳定，是国内外公认的优质电炉钢炉料，不仅可以作为废钢的代用品，而且是生产优质钢不可缺少的稀释剂。

DRI is the short name of Direct reduced iron . it has steady composition, and it is known to the world that it is very suitable for electrosmelting of steel . it is not only used as the replacer of scrap but also act as the tinner in electrosmelting of steel.

摘 要： DRI又称海绵铁，它的成份稳定，是国内外公认的优质电炉钢炉料，不仅可以作为废钢的代用品，而且是生产优质钢不可缺少的稀释剂。

And the great advantage of titanium is, it's as strong as steel and only half the weight.

而钛的一个很大的优点是，它和钢一样结实，并且重量是钢的一半。

Friction and wear behavior of CrNiMo steel against H96 brass in different atmosphere s like oxygen and carbon dioxide were investigated on the MMS-1G tribometer under high speed and dry sliding.

采用MMS-1G型高温高速摩擦磨损试验机研究了在氧气和二氧化碳2种气氛环境中CrNiMo钢/H96黄铜摩擦副的高速干滑动摩擦磨损特性，采用扫描电子显微镜和X射线光电子能谱仪对CrNiMo钢销试样的磨损表面形貌及其元素的化学状态进行分析，结合摩擦表面宏观温度的测量，分析了不同气氛环境中pv值对摩擦副摩擦磨损特性的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。