hand form block

例句：

1. 1. The engineer used a hand form block to test the strength of the material.
   工程师用一个手形块来测试材料的强度。
2. 2.The artist created a hand form block as a reference for his sculpture.
   艺术家制作了一个手形块作为他雕塑的参考。
3. 3.The carpenter used a hand form block to mark the dimensions before cutting the wood.
   木匠使用手形块来标记木材的尺寸，然后进行切割。