EurekAlert!: Combatting air pollution in China: Why secondary pollutants are now a primary concern
Combatting air pollution in China: Why secondary pollutants are now a primary concern
Air pollution adversely impacts human health, contributing to a wide range of acute and chronic health issues. Both primary and secondary pollutants, including particulate matter (PM 2.5 and PM 10), ...
Primary is used to describe something that occurs first. It is not the primary tumour that kills, but secondary growths elsewhere in the body. They have been barred from primary bidding for clients.
ACHR News: 'Variable - variable' emerges as a viable enhancement to primary - secondary for commercial hydronic systems
'Variable - variable' emerges as a viable enhancement to primary - secondary for commercial hydronic systems
Welcome to Primary. No labels, no slogans. Just soft, simpler clothes that kids and babies will love. Shop gender neutral, sustainable basics for the whole family.
The meaning of PRIMARY is first in order of time or development : primitive. How to use primary in a sentence.
PRIMARY definition: first or highest in rank or importance; chief; principal. See examples of primary used in a sentence.
Define primary. primary synonyms, primary pronunciation, primary translation, English dictionary definition of primary. adj. 1. First or highest in rank or importance; principal.
PRIMARY definition: 1. more important than anything else; main: 2. of or for the teaching of young children…. Learn more.
Adjective ... primary (comparative more primary, superlative most primary) First or earliest in a group or series.