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。

youdao

You then count the number of marks, and this will give you the height of the building in barometer units.

数出标记总数，再乘以气压计的单位长度，得出楼高。

youdao

You then count the number of marks, and this will give you the height of the building in barometer units.

数出标记总数，再乘以气压计的单位长度，得出楼高。

youdao