analysis of influencing factors on extrusion pressure for cold extrusion forming of splined tube

formula for internal resistance ratio under a quick section-load, expressions on sectional flexural torque and shear force when rod bent are given.

给出了截面快速加载下的内阻比计算公式，以及杆件弯曲时截面弯矩、剪力的表达式。

the condition of additional expansion force and additional flexural force on ballasted track is compared with that on ballastless track.

就桥上附加伸缩力和挠曲力的情况，与桥上无碴轨道无缝道岔作了比较研究。

dynamic topology optimization of metro car top based on genetic algorithm

基于遗传算法的地铁车顶动态拓扑优化

the research for emc of metro car washing machine control system

地铁洗车机控制系统在电磁兼容性方面的几点考虑

development and design of metro car-bodies for beijing batong line

北京八通线地铁车体开发设计

pondering over consultation for metro car depot design

地铁车辆段设计咨询的几点思考

trial-manufacture and running tests of homemade metro car wheels

国产化地铁车轮的试制和装车试验

optimization of manufacturing technology for hoes of metro car gear box

地铁齿轮箱加工工艺的优化

welding techniques for the aluminum alloy metro car body on shanghai pearl line

上海明珠二号线地铁铝合金车体焊接工艺

structure, control principles and improvement ideas on guangzhou metro car doors

广州地铁车辆车门结构、控制原理及改进意见

problems with the blower for braking rheostat on the metro car during the operation in nanjing and the remedies

南京地铁列车制动电阻箱风机应用中存在的问题与改进

the conclusions offer some guide for the future design of air-conditioning ventilation system for the metro car.

本文研究结果为地铁空调通风系统的设计提供了参考依据。

screenprinting tone gradation and removal of ghost image

阶调网印及龟纹的消除

changes and clinical value of bone-specific alkaline phosphatase before and after operation therapy of osseous tumor

骨肿瘤手术前后骨型碱性磷酸酶的变化及临床意义

only one recurrent case of the buccal mucosa and one malignant osseous tumor of the tongue have been reported in the literature.

文献报告中，至今仅一例再发于颊黏膜，及一例发生于舌中段之恶性骨肉瘤。

study on localization and expression of fibroblast growth factor receptor 2 in cochlea of ototoxic deafness mouse

成纤维细胞生长因子受体2在中毒性耳聋小鼠耳蜗的定位表达研究

latest progress in laser material processing

激光材料加工的最新进展

advanced laser optics for laser material processing

激光材料加工用先进的激光光学系统

the new research and development on laser material processing technology are reviewed in this paper.

综述了德日五大激光技术研究中心有关激光材料加工研究方面的新进展。

it provides some reference for the selection and optimization of technical parameters during the laser material processing.

为激光处理球墨铸铁材料时工艺参量的选择和优化提供了一定参考。