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 | DD | .~.~ By displacement of solid control elements (e.g., control rods) [G21C-7/08] {4} |
DIG 125 |  | .~.~.~ Means for moving control elements to desired position [G21C-7/12] {2} |
DIG 126 | DD | .~.~.~.~> Mechanical drive arrangements [G21C-7/14] |
DIG 127 | DD | .~.~.~.~> Hydraulic or pneumatic drive [G21C-7/16] |