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
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。



























