Cross-check the main roof truss roof installation quality of the surface is not perpendicular to the vertical center two blocks;
屋架安装质量主要检查屋架跨中对两支座中心竖向面的不垂直度;
For Distribute, select Distribute Top, Distribute Horizontal Center, Distribute Bottom, Distribute Left, Distribute Vertical Center, or Distribute Right.
分发,选择分配顶部,分配水平中心,分配底部,往左分发,分配垂直中心,或者正确分发。
Draw a vertical line down the center of your notebook paper.
在笔记本的一页的中间划一条竖线。
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