Answer: modules

AnswerCrossword Clue
MODULESSpaceship sections
MODULESStandards of measurement.
MODULESSpacecraft sections
MODULESSeparable components
MODULESDetachable sections
MODULESSpacecraft units
MODULESStructural sections
MODULESMathematical sets
modulesself-contained segment of a spacecraft
modulesMODULE, a standard of measurement
modulesbuilding unit