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Federal Specification & Standards
auto.
美
联邦
政府
规范和标准
;
美
联邦规范和标准
federal specification standard
avia.
联邦规范标准
federal specification standards
avia.
联邦规范标准
Federal Specification/Standard
econ.
美国
联邦规范一标准
Federal Specification & Standards:
1 phrase
in 1 subject
Economy
1
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