00946nam 2200169z- 450 9910692898703321(CKB)5470000002356493(EXLCZ)99547000000235649320230503cuuuuuuuu -u- -engSpace transportation : progress of the X-33 Reusable Launch Vehicle Program : statement of Allen Li, Associate Director, National Security and International Affairs Division, before the Committee on Science, Subcommittee on Space and Aeronautics, House oWashington, D.C. (P.O. Box 37050, Washington, D.C. 20013)Space transportation BOOK9910692898703321Space transportation : progress of the X-33 Reusable Launch Vehicle Program : statement of Allen Li, Associate Director, National Security and International Affairs Division, before the Committee on Science, Subcommittee on Space and Aeronautics, House o3213811UNINA