double frame hammer

例句：

1. 1. He used a double frame hammerto drive the nail into the wall.
   他使用双框锤将钉子打入墙上。
2. 2.The double frame hammer was designed for heavy-duty construction work.
   这款双框锤专为重型建筑工作设计。
3. 3. The doubleframe hammer is an essential tool for carpenters.
   双框锤是木匠们必备的工具。