𝔖 Bobbio Scriptorium
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The analysis of hand drill security psychology design

✍ Scribed by Deng Suiqi; Xiong Xingfu; Wang Wenhua


Book ID
119354402
Publisher
Elsevier
Year
2011
Tongue
English
Weight
270 KB
Volume
15
Category
Article
ISSN
1877-7058

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Pneumatic jackleg drills are widespread percussion tools used in the mining industry. Hand-arm vibration frequency-weighted exposure levels evaluated within the 6.3-1250 Hz frequency range have been found to be on the order of 25 m/s 2 when operating this tool in typical mining conditions. This stud