21

The Design and Application of Rock Bolting in Coal Mine

Year:
2012
Language:
english
File:
PDF, 279 KB
english, 2012
32

Applications of nanomaterials in mass spectrometry analysis

Year:
2013
Language:
english
File:
PDF, 723 KB
english, 2013
40

Novel magnetic spring and magnetic bearing

Year:
2003
Language:
english
File:
PDF, 190 KB
english, 2003