| 976 / | HD | NUCLEAR TECHNOLOGY |
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| DIG 113 | DD | CONTROL OF NUCLEAR REACTION [G21C-7/00] {9} |
| DIG 117 | DD | .~ By application of neutron-absorbing material (i.e., material with absorption cross section very much in excess of reflection cross section) [G21C-7/06] {3} |
| DIG 118 |  | .~.~ By displacement of solid control elements (e.g., control rods) [G21C-7/08] {4} |
| DIG 119 | DD | .~.~.~> Construction of control elements [G21C-7/10] {5} |
| DIG 125 | DD | .~.~.~> Means for moving control elements to desired position [G21C-7/12] {2} |
| DIG 128 | DD | .~.~.~> Means for obtaining differential movement of control elements [G21C-7/18] |
| DIG 129 | DD | .~.~.~> Disposition of shock-absorbing devices; Braking arrangements [G21C-7/20] *** (shock absorbers in general F16F) |