| 摘要 |
984, 594. Reactor pressure vessels. SIEMENS-SCHUCKERTWERKE A.G. June 4, 1963 [June 9, 1962], No. 22257/63. Drawings to Specification. Heading G6C. In a nuclear reactor disposed in an underground chamber, the pressure vessel is introduced into the chamber, down a borehole, in a collapsed form. After entry into the chamber the vessel is expanded, by internal pressure, to the available space. The pressure may be provided by a liquid pumped into the vessel or by a propellant charge. |
