control rod nozzle造句

Inspectors said it was caused by cracked control rod nozzles.
Plant employees found leaking boric acid created a 6-inch ( 15 1 / 4-centimeter ) hole in the steel cap near a cracked control rod nozzle.
Views from the original 18 inspection ports were blocked by 69 control rod nozzles that protrude from the reactor head and a layer of metal insulation that shields the platform from the reactor's 600-degree temperature.
It's difficult to find control rod nozzle in a sentence. 用control rod nozzle造句挺难的