HB 7613-1998 The method for determining the thrust-to-weight ratio and the power-to-weight ratio of an aircraft turbine engine

GB/T 3102.1-1993 Quantities and units—Space and time GB/T 3102.2-1993 Quantities and units—Periodic and related phenomena GB/T 3102.3-1993 Quantities and units—Mechanics GB/T 3102.4-1993 Quantities and units—Heat GB/T 3102.5-1993 Quantities and units—Electricity and magnetism GB/T 3102.6-1993 Quantities and units—Light and related electromagnetic radiations GB/T 3102.7-1993 Quantities and units—Acoustics GB/T 3102.8-1993 Quantities and units—Physical chemistry and molecular physics GB/T 3102.9-1993 Quantities and units—Atomic and nuclear physics GB/T 3102.10-1993 Quantities and units—Nuclear reactions and ionizing radiation GB/T 3102.11-1993 Mathematical signs and symbols for use in the physical sciences and technology GB/T 3102.12-1993 Characteristic numbers GB/T 3102.13-1993 Quantities and units—Solid state physics GJB 2103A GJB 241 GJB 242 HB 7497