Scholars made a macroscopic study on the financial condition of the late Qing Dynasty from the horizontal and vertical angles.
The large roof window that lights the extension from its southern side features rib-like steel frames that cradle the windows as they stagger from flat to vertical angles.
an instrument for measuring horizontal and vertical angles, consisting of a small tripod-mounted telescope.
A surveying instrument similar to a theodolite that measures horizontal and vertical angles.
国文精选馆
