| 摘要 |
<p>In a half-hermetically sealed type hopper-like container (1), different kinds of powders (A, B) are sprayed from a plurality of air spray nozzles (2, 3) and the resultant spray patterns are caused to collide against each other to thereby produce turbulence, whereby a mixture of gas and the powders is formed and the gas is separated from the mixture to thereby obtain a mixture of the different kinds of powders.</p> |
