The initial release of something, particularly in the context of environmental science or physics.

The first or major occurrence of an event or phenomenon, often referenced in studies or analyses.

प्रमुख उत्सर्जन

English Usage: Researchers are studying the primary emission of pollutants during the first year of operation.

Hindi Usage: शोधकर्ता पहले वर्ष के संचालन के दौरान प्रदूषकों के प्रमुख उत्सर्जन का अध्ययन कर रहे हैं।