( t )
太空農業(yè)(space agriculture)
太空行走(walking in space)
太陽風暴(solar storm)
太陽能(solar energy)
炭疽(anthrax)
炭疽(anthrax)
唐氏綜合癥(downs syndrome)
提高戰(zhàn)略運算能力計劃accelerated strategic computing initiative,asci
體細胞遺傳學(somatic genetics)
通信衛(wèi)星(communication satellite)