“quadrature partial-response keying”的概念、定义、翻译、参考文献-科学参考

单词	quadrature partial-response keying
释义	quadrature partial-response keying [`kwä·drǝ·chǝr ¦pär·shǝl ri`späns ´kē·iŋ] ^{COMMUNICATIONS} A modulation technique in which two orthogonally phased carriers are combined; each carrier is modulated by one of the digital bit streams to one of three levels, 0, √(2V ), and V; used to convey chrominance information in color television, and considered for use in terrestrial radio. Abbreviated QPRK.
随便看	arcometer arc-over arc process arc resistance arc seam weld arc secant arc sine arc sine transformation arc spectrum arc-spot weld arc spraying arc-suppression coil arc tangent arc-through arctic air arctic-alpine arctic anticyclone Arctic Circle arctic climate arctic desert arctic front arctic haze arctic high arcticization arctic mist

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。