معنی کلمه : fore topmast
English
A photometer for measuring the brightness of stars.
The mast erected at the head of the foremast, and at the head of which stands the fore-topgallant mast. See Ship.
کلماتور
A photometer for measuring the brightness of stars.
The mast erected at the head of the foremast, and at the head of which stands the fore-topgallant mast. See Ship.