Implements countermeasures and adjusts planning systems to avoid any line down.

监控项目发布，产品改变。 执行对策与调整计划系统以避免停产。

Draw a vertical line down the center of the page.

在页面的中心画一条垂直的线。

He then drew a line down the middle of the courtyard.

然后他在院子中间画了一条线。

The wise man took out a piece of paper and drew a straight line down the middle.

智者拿出一张纸，在中间画了一条直线。

Then she carried the line down, so that she had a double line instead of a single line.

然后拉着丝往下爬，这么一来，这个字就不是单线而是双线了。

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.

Results the fractional line down, normal school fractional line mentioned 60 points, and the difference of 5 points.

结果分数线下来以后，师范学院的分数线提到了60分，结果又差了5分。

Stakes were placed in a line down the centre between the verticals.

木桩被成一直线的放置在竖材之间的中央地带.

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。

It refers to the imaginary line down a mountain or hill which is usually directly downwards.

滚落线指的是从山上滑下的最笔直的路线。