전문 번역가, 번역 회사, 웹 페이지 및 자유롭게 사용할 수 있는 번역 저장소 등을 활용합니다.
durante unha reacción química a masa nin se perde nin se gaña. a masa total do material que entra na reacción equivale á suma das masas dos produtos da reacción.
during a chemical reaction mass is neither lost nor gained. the sum mass of the material going into the reaction equals the sum of the mass of the products of the reaction.
a maioría dos laboratorios usan campás de extracción. filtran os gases das reaccións químicas e bombean o ar limpo para fóra do edificio.
extractor hoods are used to filter out gasses from chemical reactions. the air, once cleaned, is pumped outside of the building.