正因为如此，职掌被认为是一个“黑色”艺术。

Because of this, Necromancy was considered a "black" art.

各单位之职掌，由各该主管教育行政机关核定之。

The duty of each agency shall be authorized by the competent education authority.

惕隐是辽代北面官中唯一职掌皇族政教的官员。

Dangyin is the official post charging education and politics for royal family.

文章主要阐述该机构设置的原因、年代、职掌范围和历史沿革。

This article expounds mainly the cause, years, duty limits and historical evolution of this organ.