【摘 要】
:
The Changchun No.1 Machine Tool Plant was established in 1958. It is a key enterprise of the Ministry of the Machine Building Industry, the largest grinder prod
【出 处】
:
China's Foreign Trade
论文部分内容阅读
The Changchun No.1 Machine Tool Plant was established in 1958. It is a key enterprise of the Ministry of the Machine Building Industry, the largest grinder producing plant in northeast China and a leading plant producing cam-shaft grinders in China. The p
其他文献
The China National Machinery Import and Export Corporation (CMC), founded in 1950, is a large state-owned foreign trade enterprise subordinated to the Ministry
The traditional wood carving art works in the Chaozhou and Shantou areas of Guangdong Province and in the Zhangzhou and Quanzhou areas of Fujian Province are ge
针对传输线脉冲(Transmission Line Pulse, TLP)测试方法实施过程工作量较大、实验结果与实测数据吻合较差的问题,提出一种基于改进型Elman神经网络的电磁脉冲(Electromagnetic Pu
Dalian Machinery Import & Export Corp. is located in the commercial and financial district of the beautiful coastal city of Dalian. The corporation has nearly 2
传统的掌纹识别系统大多以接触式为主,且设备昂贵、灵活性和移动性较差。为了拓展掌纹识别技术的应用,设计以网络摄像头和手机摄像头为采集端的非接触式掌纹识别系统。获取掌纹图像时,在摄像头的预览画面加限制轮廓,解决在非接触式图像采集过程中因位置不固定而造成掌纹特征纹理图像产生偏移的问题。在掌纹预处理阶段,针对获取的掌纹图像特点,实现一种能够精确定位掌纹特征分离点和截取感兴趣区域的预处理算法,并通过小波变换
Tobacco industry integrating agriculture, industry and trade is a flourishing sector in Shandong Province well-known for its significant production scale, quali
本文采用ADAMS虚拟样机技术对蹦极运动的过程进行动力学仿真建模,对设定情况下的运动安全性进行分析,并给出了蹦极者质量,橡皮绳参数,起跳高度对蹦极运动安全性的影响。
党的十九大报告指出:“人民健康是民族昌盛和国家富强的重要标志。要完善国民健康政策,为人民群众提供全方位全周期健康服务。”健康是促进人的全面发展的必然要求,是经济社会发展的基础条件,是决胜全面小康、建设社会主义现代化强国的重要前提,也是广大人民群众的共同追求。受自然历史和经济社会发展等因素影响,在我国的一些贫困地区,医疗卫生事业发展相对落后,医疗卫生服务能力相对不足,群众健康水平仍需提升。很多农民因
The Angel brand vitality swayer is made by the Zhuhai Gongbei Co. Ltd. It can strengthen the spinal nerve through goldfish type swaying movements. Medical scien
Model Z3040X 16/1 Radial Drilling Machine The Model Z3040X16/1 radial drilling machine made by the Shenyang Machine Tool Holdings Co. Ltd. won China state gold