mechanical trimmer

例句：

1. 1. This mechanical trimmer is very useful for cutting branches.
   这台机械修剪器对于修剪树枝非常有用。
2. 2.The mechanics of the machine are carefully designed to ensure smooth operation.
   机器的构造设计得非常仔细，以确保平稳运行。
3. 3. The mechanical trimmer has become a popular choice for homeowners looking for efficient tree pruning.
   机械修剪器已成为家庭主妇们选择高效树木修剪的理想工具。