One day, when Plumb and his wife were sitting in a restaurant, a man at another table came up and said, "You're Plumb!" You.

有一天，当帕朗柏和妻子在一家餐厅用餐时，隔壁桌一位先生走过来说道：“你是帕朗柏！”

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This article gives an easy way in which laser plumb line is set up by means of He-Ne laser in space with the liquid level as the base.

本文叙述以液面为基准面，用小型氦-氖激光器在空间建立激光垂直线的简易方法。

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We had to rewire the building, re- plumb it. Then we had to clean it, and then divide it up into the various functions that are required in a hospital, and equip it.

我们不得不重装电线、接水管，接着进行清洁，然后分出医院所需的不同功能区，还要装备好。

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An Egyptian astronomer would have held up a plumb line and waited for the night sky to slowly pivot around the unmarked pole as the Earth rotated.

BBC: Pyramids lined up with the stars