high-fidelity audio equipment and system [电讯] 高保真音频设备及系统
However, to ensure the effectiveness of PVT experiments, we need the help of high-performance sampling equipment to ensure the fidelity of the samples in the sampling process.
而为了确保PVT实验的有效性，就需要借助高性能的取样装备，确保采样过程中样品的保真度。
Household high-fidelity audio equipment and systems. Methods of measuring and specifying the performance. Part 1: general.
家用高保真音响设备和系统。性能检测和说明的方法。第1部分：总则。
High fidelity audio equipment and systems: Minimum performance requirements. Part 13: High fidelity systems for use in vehicles (for example, motor cars) : FM-radio tuner units.
高保真音响设备和系统。最低性能要求。第13部分：车辆用高保真装置：调频无线电调谐部件。
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