Steel square
01
钢角尺, 木工角尺
a measuring and marking tool with a straight edge and a perpendicular arm, typically made of steel, used in carpentry and construction for checking right angles and laying out accurate measurements
例子
The carpenter used a steel square to ensure the corners of the frame were perfectly aligned.
木匠使用钢角尺来确保框架的角落完美对齐。
Before cutting the wood, he marked a straight line using the steel square for accuracy.
在切割木材之前，他用钢角尺画了一条直线以确保准确性。
