half-counter-sunk rivet head

例句：

1. 1. The construction of this bridge required the installation of a half-counter-sunk rivet head.
   这座桥梁的建设需要安装一个半沉式铆钉头。
2. 2. The engineer carefully selected the right type of half-counter-sunk rivet head for the project.
   工程师仔细挑选了适合该项目的半沉式铆钉头。
3. 3. The half-counter-sunk rivet head was designed to provide extra strength and durability in the construction process.
   这种半沉式铆钉头的设计是为了在施工过程中提供额外的强度和耐用性。