clipping study

例句：

1. 1. The gardener is conducting a clipping study on the roses in the greenhouse.
   园丁正在温室里的玫瑰上进行修剪研究。
2. 2. This is a great opportunity for students to learn about clipping studies and their applications.
   这是学生们了解修剪研究及其应用的绝佳机会。
3. 3. The researcher conducted a clipping study to determine the effectiveness of her new fertilizer.
   研究者进行了一项修剪研究，以确定她新肥料的效果。