打字猴:1.70004108e+09
1700041080
1700041081 Proxima Centauri,305
1700041082
1700041083 Psyche(16)asteroid,204
1700041084
1700041085 psychological health risks,44-45,50-51,54-55
1700041086
1700041087 pulse-detonation rocket engine,116
1700041088
1700041089 Quayle,Dan,231
1700041090
1700041091 radiation:cosmic,18,85-92,174-176,224,250-251,256;HZE particles,85,88;lethal dose,82-84;solar,18,78-85,174-176,224,250-251,256;units,defined,81
1700041092
1700041093 radiation-induced cognitive decline,88-89
1700041094
1700041095 radio-isotope thermoelectric generators(RTGs),342
1700041096
1700041097 ramjets,133
1700041098
1700041099 rare-earth elements,162,168-169
1700041100
1700041101 Reagan,Ronald,170,222
1700041102
1700041103 Rendezvous with Rama (Clarke),23
1700041104
1700041105 RESOLVE oxygen extractor,228
1700041106
1700041107 Return to the Moon (Schmitt),167
1700041108
1700041109 “Return to the Moon”(symposium),123
1700041110
1700041111 Rhea,320
1700041112
1700041113 Robinson,Kim Stanley,296,302
1700041114
1700041115 rocket equation,97-100,104
1700041116
1700041117 Rocket Lab,114-115
1700041118
1700041119 Rocket Propellant-1(RP-1),104
1700041120
1700041121 Roosevelt,Franklin D.,345
1700041122
1700041123 Roscosmos,120
1700041124
1700041125 runway,high-altititude,146
1700041126
1700041127 Russia. See Soviet accomplishments in space;space race
1700041128
1700041129 Ryugu,207-208,210-211
[ 上一页 ]  [ :1.70004108e+09 ]  [ 下一页 ]