Middle-range theories provide a form of theorizing that lies between abstract grand theorizing and theoretical local descriptions.
中层理论提供了一种介于宏大的抽象理论化与局部的理论叙述之间的理论化的方式。
2
However, to construct the middle-range theory is not only a part of the rational strategy but also a part of the legitimate strategy.
而建构中层理论既是合理化策略的一个组成部分，也是合法化策略的一个组成部分。
3
But there is evidence that ct scans for calcium can play a significant role in predicting cardiac deaths and making treatment decisions for the millions of people in the middle-range of coronary risk.