gnomon

基本解释

It appears as a small gnomon with lines extending in each major direction.
它看起來象是一個小的指時針和在每個主要的軸曏上的線的延伸。
Anaximander is credited with inventing the gnomon (pointer) on the sundial.
有人把日冕上的指時針的發明也歸功於阿那尅西曼德。
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.
日晷由錫青銅鑄造，其鑄造技術的關鍵是防止大平麪的變形和保証良好的充型以獲得完整、清晰的表麪。

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