Wear vertical stripes that move the eye up and down.
穿竖条纹可以让视线从上到下地看。
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。
垂直的，我们顺势而下；
On a sheet of paper he drew a vertical line down the middle.
接着他拿出一张纸，在中间画了一条竖线。
For vertical upward pipe, usually need to bend down;
②如有垂直向上的管道，通常必须拆弯管；
Primary impeller blades of vertical air compressor were broken down in the course of use.
某公司立空压机一级叶轮叶片在使用过程中断裂。
Just draw a vertical line down the middle of a blank page.
拿出一张空白的纸，在中间画一条竖线。
For vertical installation, the pump head should be down.
如需垂直安装时，泵头应朝下。
Straight-through, right angle cast steel screw down vertical storm valve.
直通、直角铸钢可闭立式防浪阀；
Step 6: From this point draw a vertical line down to the horizontal axis.
步骤6：从这一点划垂线向下与横轴相交。
Step 6: From this point draw a vertical line down to the horizontal axis.
步骤6：从这一点划垂线向下与横轴相交。
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