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negative sign
释义
DEFINITIVE EXAMPLES 权威例句A black wire is often attached to the cathode which is also marked with the negative sign (_).阴极上常常接黑线,标着表示负极的符号(_)。剑桥国际
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fin crack
fin cutter
fin cutting
fin drum dryer
fin efficiency
fin fan exchanger
fin fish
fin fold
fin fold theory
fin formula
fin girder
fin height
fin length
fin neck bolt
fin pitch
fin ray
fin ray
fin rot
fin shield
fin spine
fin stabilizer
fin tube
fin type heat exchanger
fin whale
fin-tube heat exchanger
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