7

Ultrasonic vibration-assisted machining: principle, design and application

Year:
2015
Language:
english
File:
PDF, 3.63 MB
english, 2015
11

The Design of Signal Generator with DDS Based on FPGA

Year:
2014
Language:
english
File:
PDF, 315 KB
english, 2014
40

Dust explosion incidents in China

Year:
2012
Language:
english
File:
PDF, 774 KB
english, 2012