jackstone

n.

游戏用的小石，抛石；

Jackstone Calculi.
Jackstone Calculi.
Jackstone: A rare entity of vesical calculus
Jackstone-type rockfill concrete construction method
Sonography of a Human Jackstone Calculus
A follow-up on the Jackstone calculi removed by Dr. Halsted
FOREIGN BODY, JACKSTONE, IN THE ESOPHAGUS: PERFORATION, MEDIASTINITIS, RECOVERY
Impact of Temporary Cofferdam Jackstone Treatment on Permanent Deformation of Revetments
Brief discussion on application of jackstone treatment in treatment of soft soil roadbed
Experimental Research on Stability of Jackstone Dam Under Current Action for Protecting Submarine Cable