prism wedge

例句：

1. 1. The prism wedge was used to split the ice in the drink.
   棱镜楔子被用来在饮料中破冰。
2. 2. The prism wedge helped me see the details clearly.
   棱镜楔子让我看得更清楚。
3. 3. The prism wedge was a useful tool for measuring angles.
   棱镜楔子是一个测量角度的有用工具。