或者，如果天气晴朗，你可以测量气压计的高度，然后把它立于地面，再测量它的影子的长度。
Or if the sun is shining you could measure the height of the barometer, then set it on end and measure the length of its shadow.
绳子的长度加上气压计的长度，就等于该摩天大楼的高度。
The length of the string plus the length of the barometer will equal the height of the building.
但是该装置利用气压计来测量高度。
这个简单的问题是：“描述如何用气压计确定摩天大楼的高度。”
The simple question was: "Describe how to determine the height of a skyscraper with a barometer."
在爬楼梯的同时，你在墙上依次标出气压计的长度，记下计量的总数，就可以得出用气压计长度表示的建筑物高度。
As you climb the stairs, you mark off the length of the barometer along the wall. You then count the number of marks, and this will give you the height of the building in barometer units.
在爬楼梯的同时，你在墙上依次标出气压计的长度，记下计量的总数，就可以得出用气压计长度表示的建筑物高度。
As you climb the stairs, you mark off the length of the barometer along the wall. You then count the number of marks, and this will give you the height of the building in barometer units.
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