Then I'm gonna draw two lines straight down.

然后画两条垂线。

And if it's bending towards this normal line...

如果它的折射光线靠近这条垂线。

Sivert especially had a genius for knocking in nails, but Eleseus was better at handling a plumb-line.

Sivert 尤其擅长敲钉子， 但 Eleseus 更擅长处理铅垂线。

When the village gathered by the construction site, Mortenson met them, plumb line, level, and ledger in hand.

当村民们聚集在建筑工地附近时，摩顿森拿着铅垂线、水准仪和分类帐他们会面。

Plumb lines were also used to measure the depth of the shaft and to determine the slope of the tunnel.

铅垂线也用于测量竖井的深度和确定隧道的坡度。

For example, it is known that if we draw perpendiculars to the sides of a triangle from the opposite angles, all three perpendiculars meet in a point.

例如，众所，如果我们从相反的角度向三角形的边绘制垂线，则所有三个垂线都会交于一点。

" You're making everyone crazy." " Then he reached out and took my plumb line, and my level and my account book, and he walked back down to Korphe, " Mortenson says.

“你让所有人都疯了。” “然后他伸出手拿走了我的铅垂线、水平仪和账簿，然后他走回科尔飞，”摩顿森说。

Above what Harry assumed was the title of the story (being unable to read runes, he could not be sure) , there was a picture of what looked like a triangular eye, its pupil crossed with a vertical line.

在哈利认为是那是故事的题目（他不会读古代魔文，因此他并不能确定），这是一张看起来像三角形眼睛的图片，瞳孔处有一道垂线。

To ensure that the shafts were vertical, Romans hung a plumb line from a rod placed across the top of each shaft and made sure that the weight at the end of it hung in the center of the shaft.

为确保竖井垂直，罗马人在横跨每个竖井顶部的杆上悬挂一条铅垂线， 并确保其末端的重物悬挂在竖井的中心。