formwork vibrator

例句：

1. 1. The formwork vibrator is used to create the shape of the concrete structure.
   模板振动器用于创建混凝土结构的外形。
2. 2. The formwork vibrator helps to compact the concrete and improve its strength.
   模板振动器有助于压实混凝土并提高其强度。
3. 3. The formwork vibrator is an essential tool for construction workers to ensure the accuracy of their work.
   模板振动器是建筑工人确保工作准确性的必备工具。