| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust suppression method capable of efficiently suppressing the scattering of the dust and, at the same time, preventing the degradation of working efficiency and the deterioration of working environment and surrounding environment. SOLUTION: The dust suppression method is so constituted that a foaming agent solution is projected by projection nozzles 13, 21, 35 and 45 and that the foaming agent solution collides with a dust generating site to produce bubbles. COPYRIGHT: (C)2006,JPO&NCIPI
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