the relation of opposition between things at right angles
the quality of being at right angles to a given line or plane (especially the plane of the horizon)
造句
用作名詞(n.)
Exact perpendicularity between the components must be maintained. 各分量之間必須嚴(yán)格地保持互相垂直。
Mounting inaccuracies in parallelism and perpendicularity during the installation can create uneven loads on the ball screw system, causing abnormal noises. 在平行和垂直方向不精確的安裝可以導(dǎo)致不均勻的載荷，這些會導(dǎo)致不正常的噪音。