gnomon造句

• In all cases the gnomon lies in the plane of the meridian .
  表始终都处于子午面内。
• A stake used for this purpose was the earliest type of sundial and was called a gnomon .
  这种特定的标杆就是最早的一种日晷仪，人们称之为日晷仪标杆。
• It appears as a small gnomon with lines extending in each major direction ( along the x , y , and zaxis )
  它看起来象是一个小的指时针和在每个主要的轴向上（ x ， y ， z轴）的线的延伸。
• From then on , people were able to measure time and determine seasons based on the position and length of the gnomon ' s shadow
  从此，人们便通过观测圭表上日影的长短变化来计算时间、测定季节。