| 摘要 |
829,037. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 24, 1958 [Feb. 6, 1957], No. 4026/57. Drawings to Specification. Class 39(4). The protective sheath of a nuclear reactor fuel element is provided with longitudinal fins of a type which may be formed by an extrusion process. These are cut radially at intervals and the fin lengths, between consecutive cuts, are bent so as to direct the coolant gas round, as well as along, the element. |
