angle of keenness

例句：

1. 1. The scientist measured the angle of keenness to determine the optimal conditions for growth.
   科学家测量了敏锐度角度，以确定生长的最佳条件。
2. 2.The engineer optimized the design to maximize the angle of keenness between the two components.
   工程师优化设计，以最大化两个组件之间的敏锐度角度。
3. 3. The researcher found that increasing the angle of keenness could improve the accuracy of the measurements.
   研究人员发现，增加敏锐度角度可以提高测量的准确性。