拼缝物

例句：

1. 1. The carpenter useda special glue to fix the crack inthe wooden door.
   木匠用一种特殊的胶水来修补木门上的裂缝。
2. 2. The engineer designed anew type of composite material for the constructionproject.
   工程师为建设项目设计了一种新型复合材料。
3. 3.The scientist discovered that the new material couldbe used as a substitute for traditional plastics.
   科学家发现这种新材料可以作为传统塑料的替代品。