打字猴:1.700041213e+09
1700041213 Space Exploration Initiative(SEI),230-232
1700041214
1700041215 Space Force,223,281,328
1700041216
1700041217 space hotels,128-130
1700041218
1700041219 space junk,144,158
1700041220
1700041221 Space Launch System(SLS),157-158
1700041222
1700041223 spaceplanes,132-139
1700041224
1700041225 Spaceport America,136-137
1700041226
1700041227 spaceports,136-138
1700041228
1700041229 space race:with China,13,123,154-156;with the Soviet Union,6-8,119,150-152
1700041230
1700041231 SpaceShipOne,134
1700041232
1700041233 SpaceShipTwo,135
1700041234
1700041235 space shuttle,4,9-10,107-109,120,134
1700041236
1700041237 Space Shuttle Challenger ,231
1700041238
1700041239 Space Station Freedom ,10,230-231
1700041240
1700041241 Space Station Ⅴ(fictional),129
1700041242
1700041243 space tourism,72,124-125,130,186-192,287-288
1700041244
1700041245 SpaceⅩ,106-116,123,125,186,245-246
1700041246
1700041247 specific impulse,104
1700041248
1700041249 Sphinx-99,52
1700041250
1700041251 Sputnik Crisis,148-151,153
1700041252
1700041253 Starship(SpaceⅩ spacecraft),110,112,246
1700041254
1700041255 “station-keeping,” 146
1700041256
1700041257 Stone,Bill,161
1700041258
1700041259 Strategic Defense Initiative,342
1700041260
1700041261 Stuster,Jack,54
1700041262
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