particulate matter   (TTS Sound)

The particulate_matter has 1 Senses.

• particulate, particulate matter
• 粒子状物質
• a small discrete mass of solid or liquid matter that remains individually dispersed in gas or liquid emissions (usually considered to be an atmospheric pollutant)
• ガスか、液体の放出（通常大気汚染物質であると考えられる）の中で個々に分散し続ける固体か液体の物質の小さな個別の質量