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微波真空电子器件
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微波真空电子器件
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微波真空电子器件
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microwave vacuum electronic device
微波真空电子器件
利用真空中自由电子与微波电磁场相互作用产生和放大微波信号的真空电子器件。
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ethylene unsaturated ester copolymer
ethylene vinyl acetate copolymer
ethylene-vinyl acetate copolymer
ethylene-vinyl acetate copolymer (EVA)
ethylene-vinyl acetate resin
ethylene-vinylacetate rubber
ethylene-vinyl alcohol copolymer
ethylene wastewater
ethyl ether
ethylicin
ethyl methanesulfonate induced mutation
ethylmethyl ketone
ethyl orthophos
ethyl oxide
ethyl parathion
ethyl-parathion
ethyl silicate
ethyl xanthate
ethynyl radical
etic method
etic research strategies
Etienne Chevalier with his patron saint St. Stephen
Etienne-Louis Boullée
Etinne Lamotte
etiolation
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