This is the 4657th most frequent Russian word.
долгосрочной
Long-term.
Used as an adjective modifying 'strategii', giving the meaning of 'long-term' to describe the nature of strategy.
Планирование долгосрочной стратегии развития компании является ключевым для успеха.
Planning a long-term strategy for the company's development is key to success.
Describes 'tsel' to indicate that the goal has a lasting focus or span.
Долгосрочной целью исследования является улучшение качества жизни.
The long-term goal of the research is to improve quality of life.
Within the phrase 'na dolgosrochnoi osnove', functions adverbially to elaborate the manner or timeframe.