NRX was a heavy water moderated, light water cooled, nuclear research reactor at the Canadian Chalk River Laboratories, which experienced one of the world's first major reactor accidents on 12 December 1952.
NRX was a heavy water. A heavy water was light water. This light water was cooled. Light water cooled was nuclear research reactor at the Canadian Chalk River Laboratories. This heavy water was moderated. A heavy water moderated. Light water cooled. Nuclear research reactor at the Canadian Chalk River Laboratories experienced one of the world's first major reactor accidents on 12 December 1952.