三棱，中药名。为黑三棱科植物黑三棱Sparganium stoloni erum,Buch. -Ham.的干燥块茎。冬季至次年春采挖，洗净，削去外皮，晒干。分布于东北、黄河、流域、长江中下游及西藏。具有破血行气，消积止痛的功效。用于症瘕痞块，痛经，瘀血经闭，胸痹心痛，食积胀痛。
n. trigone
misc. rhizoma sparganii
三棱财团以此前十倍价格出售其冷冻产品。
Mitsubishi conglomerate sells frozen stockpiles at tenfold previous prices.
目的观察三棱钉张力带在尺桡骨骨干骨折中的治疗效果。
Objective To investigate the efficacy of treating diaphyseal fracture of the radius and ulna by triangular nail and tension band.
文物：秦青铜三棱箭镞，表面经过特殊防锈处理，形制规整划一。
Triangular Bronze Arrowhead of Qin Dynasty: Its surface received special antirust treatment and it has a neat shape.
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