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safety barrier
安全栅
用于隔离安全区和危险区之间信号传递,限制到危险区的信号能量,以构成本质安全信号回路的设备。又称安全限能器。
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farmland rodent community
Farmland Rodent Damage in East China
farmland rodent infestation in Northwest China
farmland sand prevention
farmland shelterbelt nets
farmland shelterbelts
farmland soil evaporation
farmland water harvesting
farm machinery cooperation
Farm Security Administration
farm stay
Farm tax system
farm tools for site preparation
farm transport vehicle
Farnborough International Airshow
farnesane
farnesol
farnesylation
farnesylpyrophosphate
Faroe Islands
Faroese
Farouk Topan
far out
far-out point
far point
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