| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus with which a dust environment containing liquid dust particles can be measured simply. SOLUTION: When air containing the dust particles is sucked by a fan, a guide is installed so as to suck the dust particles at a high speed, the air is bumped to a flat plate, and the dust particles which adhere to the surface of the flat plate are measured under a microscope.
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