AVDTZa large T-shaped piece of wood or plastic used to draw exact plans or pictures 〔画图用的〕丁字尺
Examples from the Corpus
T-square• Then, with a T-square positioned under the score mark, apply firm pressure to snap the glass.• This jig allows wooden T-square blades to be made or reconditioned, using a conventional plane.• And you had your instruments, your set squares and your T-squares and things.