coalface
An appendage; something attached to something else in a subordinate capacity. / A person associated with another, usually in a subordinate position; a colleague.
(mining) The surface of coal exposed by mining, or a part of a coal seam that is currently being mined. / (mining) The end of a drift, entry, or room in a coal mine.
(immunology, medicine) The active medical suppression of the immune response.
Having a flat, broad pelvis.
地質学者は次の交替勤務の前に採炭面を調べ、その層の安定性を評価した。
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