umbral
美 ['?mbr?l]
英 ['?mbr?l] 
英漢解釋
例句
The path of the Moon's umbral shadow begins in India and crosses through Nepal, Bangladesh, Bhutan, Burma, and China.
月球陰影的路徑開始于印度,緊接著穿越尼泊爾,孟加拉共和國,不丹,緬甸和中國。
Though the umbral magnitude is small, some regions of the moon will still be visible.
雖然蝕分不大,仍可看到月球部分區域的景象。
Causes and Preventive Measures of Umbral Lines on Stripy Fabrics with Polyester and Cotton Blended Yarns
滌棉混紡條形織物陰紋疵點的產生原因及其預防
A Probabilistic Interpretation to Umbral Calculus
啞運算的概率解釋
A note on umbral calculus
關于啞演算的一點注記