我 ... 找到一个六分仪。“好啦！”我说，“他们就是用这个测定太阳的高度。” I ... found a sextant ... "Now, " I said, "they take the sun through this thing."
星盘一种中世纪的仪器，曾用来测量太阳或其它天体的高度，现在已被六分仪取代 A medieval instrument, now replaced by the sextant, that was once used to determine the altitude of the sun or other celestial bodies.
