The article explores how to improve the process of extracting rock cores from deep underground. By using a new coring system design, researchers were able to analyze the stress conditions of the rock core during drilling. They found that by applying innovative problem-solving techniques, they could create a more efficient coring system that produces high-quality rock cores with in situ stress. The key improvements included enhancing the coring mechanism, cutting mechanism, and spiral drill pipe to obtain full-length cores from hard rocks at greater depths.