机械工程

ABSTRACT With the engineering mechanical equipment developing towards large-scale and lightweight tendency, the requirement of weldable ste...

随着工程机械设备大型化，轻型化发展，对焊接加工的高强度钢板的要求越来越严格。

Based on the research of work characteristics of engineering machine main clutch, this paper analyses the heat transmitting process, presents its mathematical model, and its exotherm expression, and obtains its results and temperature varing laws throught numerical solution.

在研究工程机械主离合器工作特点的基础上，分析了主离合器工作时的热传导过程，给出了热传导数学模型和温升表达式，并用数值解法求解，得出摩擦片的温度变化规律。

Article 15 A unit supplying machinery equipment and accessories for a construction project shall, in accordance with the requirements for safe construction, provide complete and effective safety devices, caging devices and other safety facilities and devices.

第十五条为建设工程提供机械设备和配件的单位，应当按照安全施工的要求配备齐全有效的保险、限位等安全设施和装置。

Then the characteries of such system should be realized with the technologies belonged to every discipline field, i.e., the heaven forging manipulator is a typical mechano-hydraulic coupling system.

复杂的工程系统涉及多个学科领域，是由机械、液压、控制等多个子系统融合的有机整体，其性能是各学科领域技术的综合体现，如重载锻压操作机是典型的复杂机液耦合系统。

It coalesces the knowledge and technologies of traditional engineering, such as electricity/electronics, mechanical, civil, chemical, aeronautic/aerospace, nuclear, biomedical and material, with that of computer science, mathematics, physics and even social science.

它将传统工程领域的知识和技术，比如电子、机械、土木、化学、航天、核工业、生物医学和材料科学等，与计算机科学、数学、物理和社会科学这些领域中的知识和技术融合在一起。

Responsible for project management for the design, manufacturing and commissioning of machine

负责项目工程机械的设计，制造，和调试。

As the corbelling industry of the country's economy,the advanced degree of an engeneering machine of a nation can reflect the industrialization degree of the nation basicly .

工程机械作为一种支柱产业，它的发展水平标志着一个国家的工业发展水平。

PY160 grader is mainly used for land levelling, road maintenancing, road constructiong in large areas, ita is a necessary construction equipment for earthmoving, slope scraping and earth embanking.

PY160平地机主要用于大面积平整场地、路和筑路，是移土、坡、平和路堤成形等必需的工程机械设备。

Siemens' woes deepened yesterday when a management board member was arrested in one of several scandals embroiling Europe's largest engineering group.

欧洲最大的工程机械集团西门子的困境进一步加剧，昨日该公司管理委员会的一名成员因涉嫌卷入一桩丑闻而被拘捕。

The wing-edge and wing-patch data structure and fast searching method which combines the index rectangle with compass based normal vector are designed to speed the triangulation algorithm. Application in visualization of oil geological data and griding of mechanical part, the algorithm is efficient, steady and broad-spectrum. It can provide Delaunay triangular mesh for scientific computing and engineering analysis.

算法中采用了翼边、翼面型数据结构和自行设计的索引矩形与基于法矢的指南针法相结合的快速查询法，在石油地质勘探数据场可视化和机械零件网格剖分中的应用表明本文三角化算法具有高效、稳定、适用范围广的特点，能够为科学计算和工程分析提供边界一致的Delaunay三角网格。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。