gnomon

基本解释

It appears as a small gnomon with lines extending in each major direction.
它看起来象是一个小的指时针和在每个主要的轴向上的线的延伸。
Anaximander is credited with inventing the gnomon (pointer) on the sundial.
有人把日冕上的指时针的发明也归功于阿那克西曼德。
The key issues for bronze gnomon casting with integrated and clear surface in investment casting in plaster mold involves to prevent large plate from deformation and to ensure full mold filling.
日晷由锡青铜铸造，其铸造技术的关键是防止大平面的变形和保证良好的充型以获得完整、清晰的表面。

With a tilted gnomon, a single set of lines can mark the hours throughout the year.
ECONOMIST: Gnomonic possession
The solution is to tilt the gnomon so that it points north (or south, in the southern hemisphere).
ECONOMIST: Gnomonic possession
The sun's path across the sky varies with the seasons, so the shadow cast by such a gnomon varies, too.
ECONOMIST: Gnomonic possession