primary control factor的用法和樣例：
例句
- Research shows that maceral and the degree of metamorphism of coal rock are key factors that control the generating and storing capacity of coal rock.
煤岩組分和煤變質程度是影響煤層生儲氣能力的主控因素。 - The controlling factors for the hydrocarbon accumulation in the Cretaceous strata in the Jiangling depression have long been one of the controversial problems.
摘要作為江陵凹陷油氣勘探的領域之一，白堊系在許多關鍵問題上還存在分歧和爭議，白堊系的成藏主控因素是爭論的焦點問題之一。
