preformed joint filler

例句：

1. 1.The engineer used a preformed jointfiller to reinforce the concrete beam.
   工程师使用预成型接头填充物来加固混凝土梁。
2. 2. The construction crew applied the preformed joint filler evenly across thesurface of the floor.
   建筑工人均匀地将预成型接头填充物涂抹在地板上的表面。
3. 3. The manufacturer recommends using a preformed joint filler for this specificapplication.
   制造商推荐使用这种特定的应用场合的预成型接头填充物。