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单词
social security act
释义
Social Security Act
Social Security Act
U.S. legislation providing for old-age benefits financed by payroll taxes; later expanded to include more extensive coverage. [Am. Hist.:
EB
, IX: 314]
See: Aid, Governmental
Acronyms
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SSA
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nozzle actuating system
nozzle aspirated foam system
nozzle bay door
nozzle blade
nozzle blades
nozzle box
nozzle-contraction-area ratio
nozzle diaphragm
nozzle-divergence loss factor
nozzle efficiency
nozzle exit area
nozzle-expansion ratio
nozzle guide vane
nozzle guide vanes
nozzleless burn assessment test
nozzle-mix gas burner
nozzle opening pressure
nozzle pressure ratio
nozzle process
nozzle ring
nozzles
nozzle set
nozzle throat
nozzle throat area
nozzle thrust coefficient
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更新时间:2026/1/13 23:36:39