functional MR功能磁共振functionaladj.功能的；实用的；起作用的n.【数】泛函functionaldyspepsia功能性消化不良functional recovery功能恢复functional adaption功能调适functional affinity功能性亲和力functional geometry功能性几何形状functional grouping功能组合functional maturity功能成熟度functional deafness机能性聋,功能性聋Functional sub iect功能主体functional hematuria功能性血尿

1. The second down-conversion mixer circuit is achieved by function chips, including the high-IF amplifier, the second mixer and the AGC amplifier, etc.
   二次混频主要采用选择功能芯片的方式实现，包括高中频放大器，第二混频器，自动增益控制放大器等。