double conversion receiver 双变频接收机
Double Conversion 双变换式 ; 双转换式 ; 双变换 ; 双转换
double conversion UPS 双变换UPS
On-line double conversion technology 双变换真在线式技术
UPS double conversion with bypass 带旁路UPS的双变换
double-conversion double-absorption process 两转两吸流程工艺
UPS double conversion UPS的双变换
Double Conversion Mode 双转换模式
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An RF front-end circuit for a fully integrated CMOS DTV tuner is presented in this paper, where double-conversion low IF architecture is employed.
该电路采用二次变频低中频结构，集成了低噪声放大器、上变频混频器、下变频混频器等模块。
The new hydro conversion catalyst with double function can be applied in hydrogen production and synthetic ammonia process by refinery gas as feed.
新型双功能转化催化剂可应用于以炼厂气为原料的制氢和合成氨工艺。
The double-clad fiber laser has the advantages of simple structure and high reliability, high output power, high conversion efficiency, high beam quality.
它具有结构简单紧凑、输出功率高、稳定可靠、光电转换效率高、光束质量好等优点。
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